Problems with Find

I've lost the step outline for my novel; before I sigh and type it all up again, maybe someone can help me.

I'm very, very stupid, and can't seem to see how to *include* a bunch of parameters in my search.

I go to Finder and click Ctrl-F and Sherlock (or whatever it's calling itself) comes up. I tell it to find something whose content includes, let's say, battle. Then I go to tell it to find all things I've created in the last two weeks. Then to find thingummies of the kind document.

But it only seems to do *one* of these things. It'll find *everything* done in the last fortnight, or *everything* with the word "battle" in it, or *everything* of the kind "document.

How do I get it to do all three at once, so I only get documents created in the last fortnight containing the word "battle"?

 

Oh, wait, I see suddenly - I use those pluses and minuses. Ignore stupid question. Sorry.

 

OK, *don't* ignore stupid question. It's been searching for about 10-15 minutes now without finding anything. Is there a faster searcher?