Defining Your Topic by Broadening
If you don't find enough information on your topic when you begin searching, you may need to broaden your topic. Try selecting terms that are more general. For example, Salmon is more general than Chinook Salmon and Fish is more general than Salmon.
For example, instead of asking, "What is the effect of drinking on driving?" ask:
"How does substance abuse affect driving?"
Once you've formulated a new question, you will have to repeat the process of picking out the significant terms and
making a list of synonyms and related terms.