You can search for several words and use complex queries using logical operators:
| Operator |
Meaning |
| And, &, + |
Logical AND. Both words merged by the operator must be present in the document. |
| Or, | |
Logical OR. Any of the words merged by the operator must be present in the document. |
| Not, ~ |
Logical NOT. The word, which follows this operator, must be NOT present in the document. |
| () |
Grouping operator. |
| "" |
Phrase search. When several words are quoted, they constitute a phrase which is treated as a single word during search. |