Boolean search - how to build queries?

Modified on Thu, 18 Dec at 8:21 AM

Boolean operators AND, OR and NOT, combine with our precision search algorithm, can help refine your search by combining or limiting terms. Boolean logic is a system of showing relationships between sets by using the words "AND," "OR," and "NOT."


IntelligenceBank Boolean Search parameters: 


OperatorSearch TermIntelligenceBank Notes
Noneying yangying yang : both words must match. Results where they appear together as a phrase are ranked higher
None (3+ keywords)ying yang zenying yang zen : at least 2 out of 3 words must match (70% minimum). Results where matching words appear together as phrases are ranked higher
Quotations"ying yang""ying yang" : any documents that contain the exact phrase "ying yang"
Andying AND yangying AND yang : any documents that must contain both the words ying and yang
And (no space)ying ANDyangying ANDyang : any documents that contain the word ying OR the word ANDyang
And (combination)ying AND "yang"ying AND "yang" : any documents that must contain both the words ying and yang
And (no spaces)yingANDyangyingANDyang : any documents that contain the word yingANDyang
Orying OR yangying OR yang : any documents that contain the word yang or the word ying (at least one must match)
Notying NOT yangying NOT yang : any documents that contain the word ying but not the word yang


Notes 

  • + is not equivalent to AND
  • + requires the following term to exist in the document
  • && is an equivalent to AND

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