Use this operator for clauses that must appear in the matching documents.
publicstaticOccur,Lucene.Net.SearchMUST
return
Occur
MUST_NOT public_oe static_oe property
Use this operator for clauses that must not appear in the matching documents. Note that it is not possible to search for queries that only consist of a MUST_NOT clause.
publicstaticOccur,Lucene.Net.SearchMUST_NOT
return
Occur
SHOULD public_oe static_oe property
Use this operator for clauses that should appear in the matching documents. For a BooleanQuery with no MUST clauses one or more SHOULD clauses must match a document for the BooleanQuery to match.