After you have some knowledge of your topic, you should deliberately brainstorm some keywords. Keywords are the main words, concepts, or ideas in a topic or research question.
This video will help you to understand how and why to convert a question into keywords.
This video was made at another university, so you can ignore the annotated bibliography assignment mentioned in it. Instead, just focus on the discussion of keywords.
You’ll notice that the last video recommend using 2-4 keywords for searching library databases. Watch this next video to learn more about coming up with keywords.