A final Google Success suggestion

If you get a overlarge set of results whatever you do, be sure to then use Google's Show Options link to further refine your results.

Show Options appears at the top of your search result list, just ahead of the results report. You know, where it tells you things like, "Results 1 - 20 of about 17,800,000...." items.

The Options button opens a left-column list of choices so you can easily filter documents in or out of the results. Your list of choices includes.

This Google "filtering tool" is an easy way to help you get closer to what you need, faster.