Basic searching is a first step in browsing the databases. Your searching can be broader with keywords or search terms from your research question. The database can match your search terms/key words with many different fields and can yield numerous results. This link and video can help you with your basic search.
For more specific results read the Search Filters and Advance Searching pages on the menu to the left.
CINAHL DO ONE OR MORE OF THE FOLLOWING, AS APPROPRIATE
This logic is used in search fields in databases. Each database is different, but most adhere to this logic in the same or similar ways.