To download a torrent file, first you must have a torrent client. Torrent client is a small software used to download a small file that are make up a much larger file which deliver in a small part to many users at the same time.
Once you installed the torrent client on you PC, you are ready to download torrent files. Some torrent clients have the ability to search the torrent file from the client itself.
But if you prefer external torrent search engine, here are a few suggestions of torrent search engine that you may be interested:
Below are the top 5 torrent clients you can get for free to download torrent files from above sites.
Top 5 most popular free torrent clients of 2013:
µTorrent is a lightweight and efficient BitTorrent client for Windows or Mac with many features.
Visit their website: www.utorrent.com
BitTorrent is a fast and easy client for Windows and Mac with many features.
Visit their website: www.bittorrent.com
Multilanguage and multitracker capable client for Windows. Developed in C++.
Visit their website: www.bitcomet.com
BitLet is an online torrent downloader which runs entirely in your web browser. It allows you to download files using bittorrent without having to install any client program on your computer.
Visit their website: www.bitlet.org
Vuze is easiest to use and best torrent download software on the internet.
Visit their website: www.vuze.com
Personally I use uTorrent, you can follow my tip to speed up your torrent download speed using uTorrent HERE.
Note: Be careful of what you download, you may be caught of copyright infringement.