diff -NaurU 6 src/searchengine.orig//screenedsearch.cpp src/searchengine//screenedsearch.cpp
--- src/searchengine.orig//screenedsearch.cpp	1970-01-01 01:00:00.000000000 +0100
+++ src/searchengine//screenedsearch.cpp	2011-06-04 09:59:24.330183922 +0200
@@ -0,0 +1,82 @@
+/**
+* This file is part of the QBittorrent Project
+*
+* Bittorrent Client using Qt4 and libtorrent.
+* Copyright (C) 2006  Christophe Dumez
+*
+* This library is free software; you can redistribute it and/or
+* modify it under the terms of the GNU Library General Public
+* License as published by the Free Software Foundation; either
+* version 2 of the License, or (at your option) any later version.
+*
+* This library is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+* Library General Public License for more details.
+*
+* You should have received a copy of the GNU Library General Public License
+* along with this library; see the file COPYING.LIB.  If not, write to
+* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+* Boston, MA 02110-1301, USA.
+**/
+
+#include "screenedsearch.h"
+
+/* QtCore */
+#include <QtCore/QDebug>
+
+/* QtGui */
+#include <QtGui/QLineEdit>
+#include <QtGui/QRadioButton>
+
+ScreenedSearch::ScreenedSearch( QWidget * parent )
+  : QGroupBox ( parent )
+  , characters ( 3 )
+{
+  Q_ASSERT ( parent );
+  setObjectName ( QLatin1String( "ScreenedSearch" ) );
+  setupUi ( this );
+  setEnabled( false );
+
+  connect ( cmdInput, SIGNAL ( textChanged ( const QString & ) ),
+           this, SLOT ( searchTextChanged ( const QString & ) ) );
+}
+
+void ScreenedSearch::searchTextChanged ( const QString &txt )
+{
+  QString buffer ( txt );
+  buffer.trimmed();
+
+  if ( buffer.length() <= charactersSet->value() )
+  {
+    emit prepareSearchResult ( QString() );
+    return;
+  }
+
+  emit prepareSearchResult ( buffer );
+  buffer.clear();
+}
+
+void ScreenedSearch::searchTextStart()
+{
+  searchTextChanged ( cmdInput->text() );
+}
+
+int ScreenedSearch::getCharacters()
+{
+  return charactersSet->value();
+}
+
+void ScreenedSearch::setCharacters ( int c )
+{
+  if ( c >= 3 )
+  {
+    characters = c;
+    charactersSet->setValue(c);
+  }
+}
+
+ScreenedSearch::~ScreenedSearch()
+{
+  cmdInput->clear();
+}
diff -NaurU 6 src/searchengine.orig//screenedsearch.h src/searchengine//screenedsearch.h
--- src/searchengine.orig//screenedsearch.h	1970-01-01 01:00:00.000000000 +0100
+++ src/searchengine//screenedsearch.h	2011-06-04 10:11:44.057308678 +0200
@@ -0,0 +1,78 @@
+/**
+* This file is part of the QBittorrent Project
+*
+* Bittorrent Client using Qt4 and libtorrent.
+* Copyright (C) 2006  Christophe Dumez
+*
+* This library is free software; you can redistribute it and/or
+* modify it under the terms of the GNU Library General Public
+* License as published by the Free Software Foundation; either
+* version 2 of the License, or (at your option) any later version.
+*
+* This library is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+* Library General Public License for more details.
+*
+* You should have received a copy of the GNU Library General Public License
+* along with this library; see the file COPYING.LIB.  If not, write to
+* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+* Boston, MA 02110-1301, USA.
+**/
+
+#ifndef SCREENEDSEARCH_H
+#define SCREENEDSEARCH_H
+
+/* QtCore */
+#include <QtCore/QMetaObject>
+#include <QtCore/QObject>
+#include <QtCore/QString>
+
+/* QtGui */
+#include <QtGui/QGroupBox>
+#include <QtGui/QWidget>
+
+/* UI */
+#include "ui_screenedsearchmain.h"
+
+/**
+* \class ScreenedSearch
+* \short this class provides methodes for filter search results
+* \author Juergen Heinemann (Undfined) http://www.hjcms.de
+*/
+class ScreenedSearch : public QGroupBox, protected Ui::ScreenedSearchMain
+{
+  Q_OBJECT
+  Q_CLASSINFO ( "Author", "Jürgen Heinemann (Undefined)" )
+  Q_CLASSINFO ( "URL", "http://www.hjcms.de" )
+  Q_PROPERTY ( int characters READ getCharacters WRITE setCharacters )
+
+  private:
+    int characters;
+
+  private Q_SLOTS:
+    void searchTextChanged ( const QString &txt );
+
+  Q_SIGNALS:
+    /** this signal is emitted whenever the text has changed more then \ref characters length!
+    * \param txt  text to find or exclude from search result */
+    void prepareSearchResult ( const QString &txt );
+
+  public Q_SLOTS:
+    void searchTextStart ();
+
+  public:
+    ScreenedSearch ( QWidget * parent = 0 );
+
+    /** current text length when trigger \ref prepareSearchResult */
+    int getCharacters();
+
+    /** set minimum required text length before trigger \ref prepareSearchResult
+    * \param c  default value is minimum 3 characters */
+    void setCharacters ( int c );
+
+    virtual ~ScreenedSearch();
+
+};
+
+#endif
diff -NaurU 6 src/searchengine.orig//screenedsearchmain.ui src/searchengine//screenedsearchmain.ui
--- src/searchengine.orig//screenedsearchmain.ui	1970-01-01 01:00:00.000000000 +0100
+++ src/searchengine//screenedsearchmain.ui	2011-06-04 09:57:02.796672105 +0200
@@ -0,0 +1,88 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>ScreenedSearchMain</class>
+ <widget class="QGroupBox" name="ScreenedSearchMain">
+  <property name="enabled">
+   <bool>false</bool>
+  </property>
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>652</width>
+    <height>58</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>GroupBox</string>
+  </property>
+  <property name="title">
+   <string>search result optimization</string>
+  </property>
+  <property name="checkable">
+   <bool>false</bool>
+  </property>
+  <property name="checked">
+   <bool>false</bool>
+  </property>
+  <layout class="QHBoxLayout" name="horizontalLayout">
+   <item>
+    <widget class="QToolButton" name="btnClear">
+     <property name="statusTip">
+      <string extracomment="clear input"/>
+     </property>
+     <property name="whatsThis">
+      <string extracomment="clearing current input"/>
+     </property>
+     <property name="text">
+      <string>...</string>
+     </property>
+     <property name="toolButtonStyle">
+      <enum>Qt::ToolButtonFollowStyle</enum>
+     </property>
+     <property name="arrowType">
+      <enum>Qt::RightArrow</enum>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="QLineEdit" name="cmdInput"/>
+   </item>
+   <item>
+    <widget class="QSpinBox" name="charactersSet">
+     <property name="statusTip">
+      <string extracomment="set minimum text length before search"/>
+     </property>
+     <property name="whatsThis">
+      <string/>
+     </property>
+     <property name="minimum">
+      <number>3</number>
+     </property>
+     <property name="maximum">
+      <number>50</number>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections>
+  <connection>
+   <sender>btnClear</sender>
+   <signal>clicked()</signal>
+   <receiver>cmdInput</receiver>
+   <slot>clear()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>205</x>
+     <y>36</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>349</x>
+     <y>37</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>
diff -NaurU 6 src/searchengine.orig//search.ui src/searchengine//search.ui
--- src/searchengine.orig//search.ui	2011-01-06 09:19:34.000000000 +0100
+++ src/searchengine//search.ui	2011-06-04 08:55:24.552980534 +0200
@@ -3,22 +3,22 @@
  <class>search_engine</class>
  <widget class="QWidget" name="search_engine">
   <property name="geometry">
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>820</width>
-    <height>453</height>
+    <width>650</width>
+    <height>310</height>
    </rect>
   </property>
   <property name="windowTitle">
    <string>Search</string>
   </property>
   <layout class="QVBoxLayout" name="verticalLayout">
    <item>
-    <layout class="QHBoxLayout" name="horizontalLayout">
+    <layout class="QHBoxLayout" name="horizontalLayout_3">
      <item>
       <widget class="QLineEdit" name="search_pattern">
        <property name="maximumSize">
         <size>
          <width>16777215</width>
          <height>22</height>
@@ -90,91 +90,90 @@
        <property name="text">
         <string>Stopped</string>
        </property>
       </widget>
      </item>
      <item>
-      <spacer>
+      <spacer name="sp1">
        <property name="orientation">
         <enum>Qt::Horizontal</enum>
        </property>
        <property name="sizeHint" stdset="0">
         <size>
-         <width>188</width>
+         <width>361</width>
          <height>21</height>
         </size>
        </property>
       </spacer>
      </item>
     </layout>
    </item>
    <item>
     <widget class="QTabWidget" name="tabWidget"/>
    </item>
    <item>
-    <layout class="QVBoxLayout">
-     <property name="spacing">
-      <number>6</number>
-     </property>
-     <property name="margin">
-      <number>0</number>
+    <widget class="ScreenedSearch" name="m_ScreenedSearch">
+     <property name="title">
+      <string>search result optimization</string>
      </property>
+    </widget>
+   </item>
+   <item>
+    <layout class="QHBoxLayout" name="horizontalLayout">
+     <item>
+      <widget class="QPushButton" name="download_button">
+       <property name="enabled">
+        <bool>false</bool>
+       </property>
+       <property name="text">
+        <string>Download</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QPushButton" name="goToDescBtn">
+       <property name="enabled">
+        <bool>false</bool>
+       </property>
+       <property name="text">
+        <string>Go to description page</string>
+       </property>
+      </widget>
+     </item>
      <item>
-      <layout class="QHBoxLayout">
-       <property name="spacing">
-        <number>6</number>
-       </property>
-       <property name="margin">
-        <number>0</number>
-       </property>
-       <item>
-        <widget class="QPushButton" name="download_button">
-         <property name="enabled">
-          <bool>false</bool>
-         </property>
-         <property name="text">
-          <string>Download</string>
-         </property>
-        </widget>
-       </item>
-       <item>
-        <widget class="QPushButton" name="goToDescBtn">
-         <property name="enabled">
-          <bool>false</bool>
-         </property>
-         <property name="text">
-          <string>Go to description page</string>
-         </property>
-        </widget>
-       </item>
-       <item>
-        <spacer>
-         <property name="orientation">
-          <enum>Qt::Horizontal</enum>
-         </property>
-         <property name="sizeHint" stdset="0">
-          <size>
-           <width>601</width>
-           <height>20</height>
-          </size>
-         </property>
-        </spacer>
-       </item>
-       <item>
-        <widget class="QPushButton" name="enginesButton">
-         <property name="text">
-          <string>Search engines...</string>
-         </property>
-        </widget>
-       </item>
-      </layout>
+      <spacer name="sp2">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>250</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+     <item>
+      <widget class="QPushButton" name="enginesButton">
+       <property name="text">
+        <string>Search engines...</string>
+       </property>
+      </widget>
      </item>
     </layout>
    </item>
   </layout>
  </widget>
+ <customwidgets>
+  <customwidget>
+   <class>ScreenedSearch</class>
+   <extends>QGroupBox</extends>
+   <header>screenedsearch.h</header>
+   <container>1</container>
+  </customwidget>
+ </customwidgets>
  <resources/>
  <connections>
   <connection>
    <sender>search_pattern</sender>
    <signal>returnPressed()</signal>
    <receiver>search_button</receiver>
diff -NaurU 6 src/searchengine.orig//searchengine.cpp src/searchengine//searchengine.cpp
--- src/searchengine.orig//searchengine.cpp	2011-04-11 18:21:07.000000000 +0200
+++ src/searchengine//searchengine.cpp	2011-06-04 09:58:52.659740084 +0200
@@ -40,12 +40,13 @@
 #include <QMenu>
 #include <QClipboard>
 #include <QMimeData>
 #include <QSortFilterProxyModel>
 #include <QFileDialog>
 #include <QDesktopServices>
+#include <QtGui/QTreeWidgetItemIterator>
 
 #ifdef Q_WS_WIN
 #include <stdlib.h>
 #endif
 
 #include "searchengine.h"
@@ -54,12 +55,13 @@
 #include "misc.h"
 #include "preferences.h"
 #include "searchlistdelegate.h"
 #include "qinisettings.h"
 #include "mainwindow.h"
 #include "iconprovider.h"
+#include "screenedsearch.h"
 
 #define SEARCHHISTORY_MAXSIZE 50
 
 /*SEARCH ENGINE START*/
 SearchEngine::SearchEngine(MainWindow *parent) : QWidget(parent), mp_mainWindow(parent) {
   setupUi(this);
@@ -105,12 +107,14 @@
       #endif
         );
   // Fill in category combobox
   fillCatCombobox();
   connect(search_pattern, SIGNAL(customContextMenuRequested(QPoint)), this, SLOT(displayPatternContextMenu(QPoint)));
   connect(search_pattern, SIGNAL(textEdited(QString)), this, SLOT(searchTextEdited(QString)));
+  connect ( m_ScreenedSearch, SIGNAL ( prepareSearchResult ( const QString & ) ),
+            this, SLOT ( visibleSearchResult ( const QString & ) ) );
 }
 
 void SearchEngine::fillCatCombobox() {
   comboCategory->clear();
   comboCategory->addItem(full_cat_names["all"], QVariant("all"));
   QStringList supported_cat = supported_engines->supportedCategories();
@@ -587,20 +591,24 @@
   if(exitcode){
 #ifdef Q_WS_WIN
     search_status->setText(tr("Search aborted"));
 #else
     search_status->setText(tr("An error occured during search..."));
 #endif
+    m_ScreenedSearch->setEnabled ( false );
   }else{
     if(search_stopped){
       search_status->setText(tr("Search aborted"));
+      m_ScreenedSearch->setEnabled ( false );
     }else{
       if(no_search_results){
         search_status->setText(tr("Search returned no results"));
+        m_ScreenedSearch->setEnabled ( false );
       }else{
         search_status->setText(tr("Search has finished"));
+        m_ScreenedSearch->setEnabled ( true );
       }
     }
   }
   if(currentSearchTab)
     currentSearchTab->getCurrentLabel()->setText(tr("Results", "i.e: Search results")+QString::fromUtf8(" <i>(")+QString::number(nb_search_results)+QString::fromUtf8(")</i>:"));
   search_button->setText("Search");
@@ -730,6 +738,15 @@
       const QString desc_url = model->data(model->index(index.row(), DESC_LINK)).toString();
       if(!desc_url.isEmpty())
         QDesktopServices::openUrl(QUrl::fromEncoded(desc_url.toUtf8()));
     }
   }
 }
+
+void SearchEngine::visibleSearchResult ( const QString &txt )
+{
+  QString find = QRegExp::escape(txt);
+  QRegExp regexp ( find, Qt::CaseInsensitive );
+  QSortFilterProxyModel* model = all_tab.at(tabWidget->currentIndex())->getCurrentSearchListProxy();
+  model->setFilterRegExp( regexp );
+  model->sort( NAME, Qt::AscendingOrder );
+}
diff -NaurU 6 src/searchengine.orig//searchengine.h src/searchengine//searchengine.h
--- src/searchengine.orig//searchengine.h	2011-02-27 16:41:05.000000000 +0100
+++ src/searchengine//searchengine.h	2011-06-04 09:59:46.016803284 +0200
@@ -120,12 +120,13 @@
   void pythonDownloadSuccess(QString url, QString file_path);
   void pythonDownloadFailure(QString url, QString error);
 #endif
 
 private slots:
   void on_goToDescBtn_clicked();
+  void visibleSearchResult ( const QString &txt );
 
 private:
   // Search related
   QProcess *searchProcess;
   QList<QProcess*> downloaders;
   bool search_stopped;
diff -NaurU 6 src/searchengine.orig//searchengine.pri src/searchengine//searchengine.pri
--- src/searchengine.orig//searchengine.pri	2010-11-20 18:21:40.000000000 +0100
+++ src/searchengine//searchengine.pri	2011-06-04 07:11:43.551529943 +0200
@@ -1,18 +1,21 @@
 INCLUDEPATH += $$PWD
 
 FORMS += $$PWD/search.ui \
          $$PWD/engineselect.ui \
-         $$PWD/pluginsource.ui
+         $$PWD/pluginsource.ui \
+         $$PWD/screenedsearchmain.ui
 
 HEADERS += $$PWD/searchengine.h \
            $$PWD/searchtab.h \
            $$PWD/engineselectdlg.h \
            $$PWD/pluginsource.h \
            $$PWD/searchlistdelegate.h \
-           $$PWD/supportedengines.h
+           $$PWD/supportedengines.h \
+           $$PWD/screenedsearch.h
 
 SOURCES += $$PWD/searchengine.cpp \
            $$PWD/searchtab.cpp \
-           $$PWD/engineselectdlg.cpp
+           $$PWD/engineselectdlg.cpp \
+           $$PWD/screenedsearch.cpp
 
 RESOURCES += $$PWD/search.qrc
diff -NaurU 6 src/searchengine.orig//searchtab.cpp src/searchengine//searchtab.cpp
--- src/searchengine.orig//searchtab.cpp	2010-12-26 10:51:37.000000000 +0100
+++ src/searchengine//searchtab.cpp	2011-06-04 08:47:57.675122591 +0200
@@ -35,23 +35,23 @@
 #include <QSortFilterProxyModel>
 
 #include "searchtab.h"
 #include "searchlistdelegate.h"
 #include "misc.h"
 #include "searchengine.h"
+#include "screenedsearch.h"
 #include "qinisettings.h"
 
 SearchTab::SearchTab(SearchEngine *parent) : QWidget(), parent(parent)
 {
   box=new QVBoxLayout();
   results_lbl=new QLabel();
   resultsBrowser = new QTreeView();
   resultsBrowser->setSelectionMode(QAbstractItemView::ExtendedSelection);
   box->addWidget(results_lbl);
   box->addWidget(resultsBrowser);
-
   setLayout(box);
   // Set Search results list model
   SearchListModel = new QStandardItemModel(0, SearchEngine::NB_SEARCH_COLUMNS);
   SearchListModel->setHeaderData(SearchEngine::NAME, Qt::Horizontal, tr("Name", "i.e: file name"));
   SearchListModel->setHeaderData(SearchEngine::SIZE, Qt::Horizontal, tr("Size", "i.e: file size"));
   SearchListModel->setHeaderData(SearchEngine::SEEDS, Qt::Horizontal, tr("Seeders", "i.e: Number of full sources"));
@@ -80,12 +80,13 @@
   if(!loadColWidthResultsList()){
     resultsBrowser->header()->resizeSection(0, 275);
   }
 
   // Sort by Seeds
   resultsBrowser->sortByColumn(SearchEngine::SEEDS, Qt::DescendingOrder);
+
 }
 
 void SearchTab::downloadSelectedItem(const QModelIndex& index) {
   QString engine_url = proxyModel->data(proxyModel->index(index.row(), SearchEngine::ENGINE_URL)).toString();
   QString torrent_url = proxyModel->data(proxyModel->index(index.row(), SearchEngine::DL_LINK)).toString();
   setRowColor(index.row(), "red");