To keep those files from shoving up, You can go to the filters tab in the options, then add keywords to filter

example: porn, porno, gay, lespians, preteen, incest etc.

you can also type fileextensions like: .asx .mov .wmv etc. Remember the period . before writing file extensions, or you will be filtering results like movie if you only type mov

That will stop many of the unwanted files from showing up. especially the file extensions work well for me