You may have got some problems in searching files that you need. Actually, you can solve it easily by using rapidshare file search, a search engine that is designed to help you find files fast. The files you are searching can be in the form of zip files, rar files and so on. All you need to do to use it is by typing the keywords of the file you are searching in a search box and this file search engine will bring all the files to you.
While Google or other search engines give you the links of websites when you are searching files or information, this file search engine gives you the links of files directly. So you do not need to open the websites where the files you are searching are located. Hence, it is very time saving. To use it, you can directly go to http://fileknow.com and search the files you need there.