A search (especially for someone or something missing) — searching or sweeping an area to find a missing person or item; manhunt/rescue searches.
警察は行方不明の子どもを捜索している。
The police are searching for the missing child.
山岳救助隊が遭難者の捜索を開始した。
The mountain rescue team began searching for the stranded climbers.
捜索は夜通し行われ、近隣住民も協力した。
The search continued through the night with neighbors also cooperating.
A legally authorized search — an official search of a person, building, etc., carried out under legal authority (e.g., a search warrant).
裁判所の令状に基づく捜索が行われ、証拠品が押収された。
A search carried out under a court warrant was conducted and evidence was seized.
家宅捜索の結果、違法な品物が見つかった。
As a result of the house search, illegal items were found.