The WordPress search facility

Hi there…

I have the search facility in my blog theme and I was wondering if there is information somewhere that tells me what syntax people can use in the search box.

For example, if someone wants to search for a phrase, do they enter:

luxury travel
luxury+travel
“luxury travel”

or something else?

Can they use the “-” symbol to select words that they don’t want to remove from a given search.

In short, is there a whole list of this kind of stuff somewhere?

Thanks a lot

Paul