When you are planning to search for information, whether in the library catalogue, journal article databases, or the Internet, it is a good idea to do some preparation beforehand by formulating a search strategy.
This process will help you break your topic into individual concepts. It will also help you determine relationships between the concepts, and possible similar or related terms that express each concept.
This video, from the University of Kansas Libraries, demonstrates effective search strategies such as synonym searching, using AND, OR, and NOT and phrase searching.
Google Scholar can be a useful tool in your research. Here are links to a few videos that will teach you the ins and outs of using Google Scholar.