Comment 6 for bug 1671834

It appears that we match word prefixes only (which is arguably a good choice): "ath" does not find "LibreOffice Math", but "math" does. However there are some cases where U8's implementation is annoying.

Example: Search "si"
Unity7 returns: "Simple Scan", "Universal Access", "Disk Usage Analyzer", "Passwords and Keys".
Unity8 returns: "P: Password...", "S: Simple Scan", "U: Universal..."

So Unity7 is returning the more useful result first, but it's still not perfect. I would have said the perfect answer would be to only return "Simple Scan" for "si". If we did that then the alphabetical split would not matter (only one result returned).