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Advanced Search Techniques

By default, if a search query is entered without any operators between words, each word must be present in a document (body section or meta info) in order for it to show up in the search results page. 

To increase the accuracy of a search or narrow down the list of results, you can use special search query operators. Available operators and their functions are listed below.  

Operator

Function
AND + (plus)

The AND operator, or + (plus) requires the word following the operator to be present in a document in order for it to qualify as a matching result. 
NOT - (minus)

As important as it might be to require a word to exist in a search query, it may be just as important to provide words that you do not want to be present in a search.  This is where the NOT operator, or the - (minus) comes in handy.  This helps remove documents by specifying words that may not have relevancy to your search. 
OR | (pipe)

The OR operator, or the | (pipe) is a condition that states that the word or phrase can be present but it is not required for a document to show up on the results page.  This argument is useful to include additional search query parameters without completely removing other candidate matches .
"phrase search"

Searching for a phrase means that the words between the quotes must show up in that exact order, adjacent to one another. 
Wildcard *

Searching with wild cards allows a query to search for a partial match of a word.  The conditions are that a wildcard can only appear at the end of a search term, and at least two characters must be provided before the wildcard * (asterisk) argument.

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