My example research topic:
"I'm interested to know if online applications help people who are dating and in long distance relationships to communicate with one another."
Keywords: long distance relationships dating online communication
Long distance relationships = 3000+ results.
Add online = 249 results.
Add communication = 118. Notice your results are now much more specific.
Checkmark the Peer Reviewed box on the left side of your screen = 81 results.
Communication & Mass Media Complete database allows you to search through almost 1000 communication-specific news and research publications.