Your password search for Reaper.s02e01.episode.iv.a.new.hope.proper.hdtv.xvidfqm.part2 will return better results if you exclude words in your search such as: password, unlock, crack, cracker, remover, hack, extract, open, recovery, winrar, rar, winzip, zip, etc.

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If a file has been downloaded via torrent you may search for the filename of the particular torrent file that is password protected.