Determine What Information You Need: What is Your Research Question?
Think of all the questions you might ask to understand your subject. Consider questions that require you to think critically about the topic, or about a specific element or certain angle on your topic. Try filling in this prompt:
I'm studying __________ to investigate __________ in order to understand __________.
Create a list of keywords associated with your topic.
What else could it be called (synonyms)? What describes it specifically (hyponyms)? What is it related to broadly (hypernyms)?
Topics can be narrowed or broadened depending on the use of search terms.
General: monkeys
Narrower: howler monkeys
Broader: primates