You're in a subject-specific class - be on the look out for key words specific to the theater that can help focus your topic.
It's a good idea to keep track of search terms you're using and what you're finding. This will help you figure out what's working, and what's not, as you gather materials for research!
Coming up with Keywords
Taking a few minutes to think about and identify some keywords before starting your search will help you search more efficiently, which will save you time (and probably a little frustration).
Different subjects will often have their own specific terms to describe something. Keeping an eye out for subject-specific language will give you clues as to which subjects are writing about your research question, and what words you can use to search.
Here I notice that this is published in the American Journal of Public Health, and that Public Health is used again in the subjects. That suggests to me that I might find research about binge drinking in the subject of public health. Do you notice any subject words that might make good keywords?
Here I notice subject terms relating to psychology. That suggests to me that I can probably find some more research on binge drinking in the area of psychology.
Keeping track of where you've searched will save you time as you conduct your research.