Searching for a phrase within a file

[suzumeiro]

Hello, I purchased the iPad3 in hope that I will be able to use it to access my class notes easily. I'm really hoping to find a file manager type app that will allow me to store and browse variety of file types (word, powerpoint, excel, pdf) and when I type in a phrase in the search box, it will find that phrase not just in the file name, but also in the file content.

Thank you for your help in advance!