I wont go into details of how these things work, if you are really interested, Google for ” Google Search Tips and Tricks”
Just copy one of the following links Google search box.
“parent directory ” mp4 -xxx -html -htm -php -shtml -opendivx -md5 -md5sums
parent directory ” mkv -xxx -html -htm -php -shtml -opendivx -md5 -md5sums
“parent directory ” DVDRip -xxx -html -htm -php -shtml -opendivx -md5 -md5sums "the godfather" 720p yify
"parent directory" index of "Tvseries/movies"
if you want pdf files, just change the mp4 or mkv part of the codes to pdf.
If you are clever enough, you can customize them according to your needs. 😀
Happy Downloading.