Nope, didn’t use quotes in this particular search, however Google can be very temperamental at times. Here, give this search a try, you should end up with close to 200 results.
http://www.google.com/search?client=safari&rls=en&q=Cho+Seung-Hui+islam&ie=UTF-8&oe=UTF-8
Cho Seung-Hui islam
I would get different results when using the ‘google' menu search bar (198 results) in ‘Firefox’ versus if I was directly entering the same search using google.com (165 results)
None of which are remotely interesting.