Forums » RForum » how do you search for more than 1 keyword?

How do I use the rforum search capability to look for posts that contain 
2 words or phrases?

for example, there;s apost that I know for sure contains the words 
"customers" and "accounts" -- how would I find that post?

I tried entering "customers accounts" and "customers and accounts" but 
no dice.

Couldn't find any little "how to search" page, either.