NotLight

NotLight is a simple Spotlight front-end substitute. You can do any kind of Spotlight search with this app; seven search keys are built in, and you can add more, and you can even view and edit a search as text if you like.

You can use wildcards or not, specify word-based, case-insensitive, and diacritic-insensitive searches, and construct complex searches with AND, OR, and NOT. A Date Assistant translates dates into Spotlight’s query language for you. Results are a simple list of filename and paths.