To find a specific contact, search by first or last name in the Community view using the Search bar. If you're looking for a list of contacts, you can use the filter tool to layer queries and find the exact group of people you need.
Create advanced queries by using the Filter tool. You can layer queries (for example, hours credited or city), to find the set of people you're looking for. You can even save searches, or export your search.
Another option is to Save your Search.