To search for an exact phrase, place it in quotation marks

Example: “great depression”

Combine search terms using AND, OR, NOT (in uppercase)

Examples:
   plastics AND environment will give results that have both terms
   plastics OR environment will give results that have either term or both terms
   plastics NOT environment will eliminate results that contain the term environment
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Searches can be nested using parentheses

Example: (squid OR octopus) AND ("Gulf of California" OR "Sea of Cortez")

Wild cards - an asterisk (*) will give you any word which starts with the letters you use

Example: allerg* will bring results for allergy, allergies, allergens, allergic, etc.