You may find the EBSCO interface yields more specific results
With EBSCO, you can choose which databases you want to search. For your class, I would suggest the following...
--Academic Search Premier
--Communication & Mass Media Complete (for some topics)
--ERIC (for some topics)
--PsycARTICLES (for all of your topics)
--PsycINFO (for all of your topics)
--Social Sciences Full Text - H.W.Wilson (for all of your topics)
--SocINDEX with Full Text (for all of your topics)
Pay attention to the facets on the side. You can use them to change your results quickly.
You can InterLibrary Loan articles as well if we do not have the full text. The article will usually come in a day or two.