搜索
to search (a place); to search (a database etc)
搜索引擎
Internet search engine
搜索枯肠
to rack one's brains (for apt wording etc) (idiom)
搜索树
search tree (computing)
人肉搜索引擎
human flesh search engine; a large-scale collective effort to find details about a person or event (Internet slang)