My employer prefers the <a href="http://www.google.com/search?hl=en&rlz=&q=filetype%3Apdf+%22strictly+confidential%22" rel="nofollow">http://www.google.com/search?hl=en&rlz=&q=filetype%3...</a> terminology. I wish there was a way to get results that only have the terms in the body and not in the title, would probably be even more fruitful.