Searching by keywords is a useful way to cross-reference, check accuracy re: invoice and payment dates, etc.

I can't currently filter customers by a combination of keywords since the search function only returns the exact string I entered.

It would be great to be able to use AND and OR commands in a search, or to narrow down a search within a subset instead of having to search the entire database with a single search string and then rely on sorting the results to find what I'm looking for.