Finds both words (in any order).

Example: Samara + Saratov — the article must mention both cities.

Finds articles that mention at least one of the words.

Example: Samara | Saratov — articles with either city will match.

Excludes articles containing the specified word.

Example: Samara -Saratov — will find Samara, but without any mention of Saratov.

Finds words with similar spelling (up to two mistakes allowed).

Example: Samara~2 — will find Somara, Samar, but not Saratov (too different).

Finds the exact phrase in the specified order (with possible inflections).

Example: “Not Samara, but Saratov” — will be found only in this word order.

Finds articles where words are in a different order or separated by up to N other words.

Example: "Samara Saratov"~5 — will match: “Saratov was once again confused with Samara”.

Parentheses control the order of logical operations.

Example: (Samara | Saratov) + Volga — finds articles with Volga and one of the cities.

Without parentheses: Samara | Saratov + Volga — finds either Samara, or both Saratov and Volga.

Finds words starting with the given prefix.

Example: Sara* — will find Saratov, Sara, sarafan, Saratovskiy, and others.