Once you have found your topic:
Example: Diabetes and Obesity in Mexican American children who live in El Paso, Texas.
When you break the topic down into words, come up with as many words as you can to describe your topic. The background information that you read on the topic can help you think of keywords.
For the example above:
The list contains the words from the topic that was written down, but it also has additional words that can be used to describe the topic. Example: If you don't find any resources that talk about El Paso, you can try the words Southwest or Border or Texas.
If you need help finding keywords to use, ask a librarian for help.
In some cases, you may need to try singular and plural versions of the same word for example: Diabetes, Diabetic, and Diabetics.
You can search for all of these at the same time by putting the root part of the word and an *.
Example: Diabet* will search for all words that begin with those four letters: Diabetes, Diabetic, and Diabetics.
Try: Diabet* and Obesity and Hispanic