| Operator |
Meaning |
| + |
Word must be present |
| - |
Word must not be present |
| > |
Increase word’s relevance |
| < |
Decrease word’s relevance |
| () |
Group words into subexpressions |
| ~ |
Negate a word’s relevance |
| * |
Wildcard at the end of a word (e.g., dev*) |
| " " |
Match an exact phrase |
Stop Words : a, about, an, are, as, at, be, by, com, de, en, for, from, how, i, in, is, it, la, of, on, or, that, the, this, to, was, what, when, where, who, will, with, und, the, www
Minimum Keyword Length : 3
