ok, that kind of makes sense, so it must be a usenet-crawler thing then, here's what i'm experiencing,
First search is the full name and season/episode results (makes no difference with spaces or dots between the words)....
Second image is with removing the season/episode reference and putting them in the filter box and repressing the search button (doesn't matter if search is re-pressed prior to entering the filter details or not, it finds many more results and the filter then as you said strips away those that don't match)