When searching for files (Lookup), it is frustrating that generally it matches the final files in a release with the similar name instead of the first (that is an exact match). 

An example, when searching for "Mama's Boy" (screenshot 1)

Using Lookup, it will match Track 22, which is "Mama's Boy (demo)" (screenshot 2)

While using Scan, it will match Track 1, "Mama's Boy" (screenshot 3)

So, generally Lookup performs badly for Enhanced Releases, where CD1 has the regular tracks, then there are demo versions, or 5.1 mixes, or different versions of the track. It will generally match the ones at the end of the release rather than the ones at the beginning.