Is there any documentation that tells me which keywords I can use as query parameters?

I created a Business Object with query parameters as shown below. It works fine, but my question is about the keyword “and.” The online docs say you should use a comma (,) to join multiple conditions, but that doesn’t work in BO. Is there any documentation that explains which keywords or operators are supported in query parameters? I’d like to learn more about the supported syntax.

?q=ItemA='ABC' and ItemB='BCD'