Search and rescue, search for and provision of aid to people who are in distress or imminent danger
Search and seizure, a legal term
Search and destroy, a military strategy which consists of inserting forces into hostile territory and directing them to search and then attack enemy targets before immediately withdrawing
Underwater searches, procedures to find known or suspected target objects in a specified search area under water
Water surface searches, procedures carried out on or over the surface of a body of water with the purpose of finding lost vessels, persons, or floating objects