The article is devoted to the consideration of information retrieval strategies in information retrieval systems (IRS). The preparatory stage of information retrieval is analyzed in detail, allocated simple and complex objects and aspects of search; the rule for dividing the request for subqueries is formulated. The role of logical operations for the construction of a search strategy is substantiated, the rules for designing and implementing search strategies in information retrieval systems are proposed. The results of the questioning of students are analyzed, and it’s possible to state that many of them are not ready to use logical operations correctly in the process of information retrieval in information retrieval systems.