When using QuickSearch (CMD+P on Mac), rank exact file matches higher than recent history matches (search.quickOpen.includeHistory). Specifically, imagine if you have a file "fooBar.js" and a recently opened file "fooBarSomeOtherThing.js". If you QuickSearch with query "fooBar", "fooBarSomeOtherThing.js" from recently opened files will be ranked higher than fooBar.js. I believe the exact file match should be ranked higher in this case.