Those are generally spam / fake files.

1. Beware of Fake files in search results

2. How to find music which can still apply in principle to other types of media.

3. (a) Problems with the search, __ (b) Hostiles List

4. Ignore files less than 2,000 KB (2 MB) as most are spam & many viruses, etc. Arrange search results by size (click on link)

5. You can use the junk filter to designate files less than 1,000 KB as junk. Select those results in search results & click the trash can icon. Also go to Tools menu > Options > Junk & set them to show at bottom of results.