Use ELS to Build a Precise Search Using Boolean Operators (and, or, not)
By default ELS searches for your search terms that occur somewhat close together (proximity). By using the Boolean operators -- and especially AND between your search terms and phrases -- you can make your search stronger and more accurate.
- Use AND between your search terms to get all the items that match all your search terms and ONLY those, for example: social media and memes. You can also add AND and additional terms to narrow the search even more: social media and memes and regulation.
- Use OR between synonyms or near synonyms to get all items that match ANY of the terms, for example: United States or USA or America.
- Use NOT before a search term to get all results except those that match the term after NOT; for example: civil war not United States.
In addition, in ELS
- Use quotation marks to use an exact phrase as your search term: "Painful Case" ; or "painful case" and Joyce
- Use * to replace one or more letters at the end of a word: immigra* instead of immigration or immigrating or immigrant.