Exact phrase - put it in quotations
Find specific types of articles:
Find magazines or journals: look in the left sidebar of database results pages for the option to Limit To Magazines or Scholarly (Peer Reviewed) Journals
Truncate terms if appropriate. Adding an * at the end of a word will search for alternate word endings. For example, clon* will retrieve cloning, clone, clones, clonal.
The ISU Library subscribes to many different article databases. The complete list is available under "Articles & Databases" on the Library's website.