" " - Use quotation marks to search for results containing an exact phrase.. Useful for multi-word phrases.
Example: "body language" = articles that include this exact phrase, but not articles that use the words "body" and "language" in any order throughout the title or abstract.
* - Searches for the exact string of characters you enter, plus any number of characters that appear in place of the star. AKA "truncation"
Example: child* = results using terms like child, child's, children, childless, childhood, etc.