How do I search in Time Machine backups?

Needed to search for files in backups and thought that a spotlight search would do it; however, this does not seem to be the case. Google'd it and an article on Mac101 said that I can do a search in Finder, open up Time Machine, and click the up arrow to find the file.

This works but is there a direct way to search from Spotlight or Finder search without having to open up Time Machine?

Thanks.