Hey, did you notice? I'm a paying member now, and that's how I came up with my link.
I don't know how the search has changed, but before when it was available to every one, if your search words were too common, as in they produced too many results, that's what would happen, no results just a blank page. For instance, if your search contained "PSK" or "knife", you would get the blank page, because it would return so many results, that it would get screwed up somehow. I don't know if they've fixed that, I hope they have. Anyways, cheers.
Sorry for the rabbit trail guys. As you were.