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Advanced Search pageSearches by default include all the search terms entered, using a boolean AND. To search for articles which contain either term, you can use a boolean OR with the | or OR parameter.
Exclude terms by prefixing them with the - or NOT operator, such as -thcnet, or not voltaic.
Search for a phrase by enclosing your search in quotes, for example: "apple pie"
For more complex queries, terms can be grouped with parenthisis, for example: (apple or pear) and pie -cookie
Entering data for multiple selections result in a boolean AND query of the selections.