per https://skyline.ms/announcements/home/support/thread.view?rowId=62625
"when searching e.g. for molecule names in the Spectral Library Explorer, the search currently looks for text only at the start of the string. I.e. the filter "benzo" finds "benzophenone" and "benzothiazole" but not "1H-benzotriazole". I tried using * or such, but this doesn't seem to be working. Especially for molecule names with some prefixes (e.g D-Glucose vs Glucose, or prefixes like 1,1',2-alpha....- etc) this makes it complicated to find the molecule if the user doesn't know the precise database name."

If we allowed the user to just start the search term with "*" (and added a tool tip about that) we could readily search on Contains instead of StartsWith, though there might be performance implications on large libraries.