Your preliminary research should include broad and general reading about your topic, e.g., articles from journals, newspapers, magazines, and book browsing (you may end up using only some of these resources in your actual project)
There must be a clear focal point to your research project—state what it is you want to investigate, discover, question, compare, argue, etc. You must present a well-defined idea or assertion capable of being supported by your research: this is your thesis statement. Examples of thesis statements:
Identify the key concepts in your thesis statement, as these will become your search terms.
Give yourself sufficient time to do a thorough job. Do not wait two days before your paper is due to start doing your research.