Search is a broad term that includes the way individual algorothms traverse theor potential solution space and also user interface level searching. For the latter see search engine.
Search is one of the key aspects of AI and includes{deterministic search}} algorithms such as best first search and depth first search, game playing such as minimax search and stochastic algorithms such as simulated annealing.
Used on Chap. 2: page 33; Chap. 3: page 48; Chap. 5: page 92; Chap. 6: page 125