You're asking how to use Google, and how to format the search terms...(?)
Search for what you want: use words that describe what you want to find.
Use the results to refine your search terms, so you get results that are closer to your needs.
Search with your refined search terms.
rinse;
repeat.
(That's mostly what I do, and works well - most of the time)
Tried a quick search - found
this (You were looking at Mac software used to add or change the language in videos, so assumed that you had some interest in that.)
It would
really be helpful if you could describe to us what it is that you want to do on your PC. Someone here can help, but we need to know some more about what you do, and what you would like to do.