@bi4smooth That doesn't address the question, it's about categories rather than search terms. Category searches seem to perform an OR match rather than an AND match (the latter makes more sense to the OP and myself). It would be nice if the term search gave a way to search for the categories using AND, OR, and NOT.

http://www.digitalfaq.com/guides/video/capture-understand-sources.htm

Erasure - Gaudete