Sounds like you're seeing fake files.

If you're searching for music files, use the All Types search & search for artist or album rather than song title. Go for a file with 10 sources or less...stay away from the files with huge numbers of sources.
If you're searching for video files, always chech the file with Bitzi before download. Users can rate files with Bitzi & it's great for weeding out fakes & misnamed files. If a file has heaps of sources but no Bitzi rating, chances are it's a fake.

Check out the threads below for more info & tips, including how to use Bitzi

Fake files showing up in search results

How to find music