Try combining and recombining search terms in different databases to see what results you get. Some ideas are:
JSTOR tools for your assignment
Includes biographical information on authors and critical reviews of works. Contains encyclopedia and journal articles.
This database offers an enormous collection of full-text journals, magazines, and news sources in many subject areas. Scholarly content covers a broad range of important areas of academic study, including anthropology, engineering, law, sciences and much more.
JSTOR provides a full text archive of articles from scholarly journals in many disciplines (Art, Business, Humanities, Sciences, Social Sciences and more).
Articles from the ethnic, minority and native press.
ProQuest Research Library's 3500 full text periodicals - scholarly, trade and popular – cover subjects from business and political science to literature and psychology.
Academic OneFile provides access to millions of articles from over 17,000 scholarly journals and other authoritative sources in key subject areas such as biology, chemistry, criminal justice, economics, environmental science, history, marketing, political science, and psychology.
LitFinder provides access to literary works and authors throughout history and includes more than 130,000 full-text poems and 650,000+ poetry citations, as well as short stories, speeches, and plays. The database also includes secondary materials like biographies, images, and more.