The text is already "proper" for searching for a specific song or video. It likely refers to a performance by the Uzbek singer Bahodir Fayozov titled "Chiroyli qiz" (Beautiful Girl).
To say "The girl is beautiful" in a full sentence, you would write: "Qiz chiroyli." bahodir fayozov chiroyli qiz
If you are looking for the "proper" or grammatically correct way to write or use this phrase, it depends on what you mean: The text is already "proper" for searching for
The phrase translates from Uzbek to "Bahodir Fayozov beautiful girl." bahodir fayozov chiroyli qiz
Since Bahodir Fayozov is a proper noun, it should be capitalized: Bahodir Fayozov — "Chiroyli qiz" .