You could search and find anything stored on your iPad like Mail, iPod, Videos, Contacts, applications etc using Spotlight. So if you want to do it, then here is how to search files on iPad using spotlight. Just do the following to search something on iPad.
1. On the home screen, press the Home button or flick right to get to the Spotlight page.
2. Now start typing what you want to search on the iPad and results starts showing as you type.
3. If you want to remove the on screen keyboard and view the results completely, then tap on Search.
4. Now you could tap on the file name for opening it or press the Home button again to quit Spotlight and go back to the home screen.
That’s it! This is how to search on iPad.