I have this exact same problem, and so does my partner (on a seperate computer in a seperate location).
Every video search brings up results with the following titles:

- smoking teenager sl*t getting (...)
- watch me f* my sl*tty teenager girlfriend (...)
- lusty 19 year old teenager (...)
- the c*mshot my teenager girlfriend never thought would (...)
- very s*xy teenager does ******l insertion (...)
- dorm room s*x with super hot coed teenager


The list goes on, but the results are always the same. There's about 20 separate filenames that keep coming up and they are always the same size (although this size may vary from serach to search)

I have been dealing with it by organizing search results by filesize, as the files are always too small to be any tYpe of genuine result. But I'd still like to know if there is a way to block them. They annoy me, and I don't feel like looking at "HOTTT HOTTT HOTT TEENAGERS BLAAAARGH!!!" every time I search for movies.