The best way to find resumes of individuals in your industry. Also, search on your vendors, suppliers, etc. Certain colleges in your area or nationally develop reputations for certain programs. For example MBA, PHD, Microsoft Certified, etc. Sometimes searching on a city or state brings in too many results.
Zip codes can help narrow a search.
If you are looking for individuals with extensive experience or for senior positions use dates as your search criteria. For example, doing a searching on 1978 will give you individuals who are seasoned veterans in the workplace. For positions that require candidates to be bilingual or speak several languages searching on specific language will result in qualified candidates. For example, Spanish, German, etc. Do a search on the word volunteer or a specific hobby for example fishing, reading, computing, etc.