I'm new to LW. I don't grasp how the search terms I enter relate to the results I get. Oh, the stuff I want is retrieved, but so is a much wider swath of results.

For a simple test example, I selected audio files and entered "bobs" under artist. That's all. I figured I would get back mostly stuff by the comedy a capella group The Bobs. I got that, and a few other titles with "bobs" in it. But I also got "bob's", "bob" and -- worst of all -- a lot of stuff with no conceivable use of the term "bob" or "bobs".

What's up? Am I missing something obvious?

I'm really expecting this to work more or less like a web search engine.... every term is looked for, at least approximately, and the hits are those documents that contain ALL of my terms (not ANY of my terms -- that's way too wide). But I get totally random stuff. And I'm only talking one term here, "bobs".

Thanks. --David.