1. Limit your searches to Peer Reviewed Journals or Academic Journals
2. Add terms such as "literary" or "literature" or "criticism."
3. Add terms from the critical approach.
Example:
Margaret Atwood
AND
Oryx and Crake
AND
Novel
AND
Feminist
Journals, magazines, and newspapers in almost every subject area.
Journal articles and books. Journal have with long backfile runs but lag with a 4-5 year moving wall.