NKA query for eg. "Va Trance" could be look like this:
https://www.google.com/search?q=va trance(.ac3|.flac|.m4a|.mp3|.ogg|.wav|.wma)%20+%20-inurl:(jsp|pl|php|html|aspx|htm|cf|shtml)+%20intitle:index.of%20-inurl:(listen77|mp3raid|mp3toss|mp3drug|index_of|wallywashis)
(Just replace "va trance" with others