With Windows XP, you would have noticed you have more features to pick in order to find the specific file you're looking for using Search Companion (and I still think it's the BEST thing ever since). But with Windows 7 and onward, you're limited with a simple search and having to remember what functions/code to do further searching.
I've come across this software (well, many moons ago), which I have found very useful and I always have a copy of it on my network drive, my USB stick and even on my cloud storage!
It's AstroGrep. And it's very powerful, yet so simple to use. The best of this program is that it's free. And open source too.
http://astrogrep.sourceforge.net/
It does many things you want it to do. Search for a word within files. Wildcard searching. Even Regular expressions if you're into it!
I use it to find the biggest space hogger but I mostly use it to find specific file and many more. Give it a go.
Do you use it? And if not, what do you use? Do share!