Searching during the problem-solving process helps ensure we do not spend time and effort resolving issues that have already been solved. It also helps us solve new issues by providing access to the broader experience of the organization's work on similar problems.
We may even discover someone else is actively working on the same or a related issue. At an organizational level, this technique is a major way the organization benefits from its investment in a knowledge base and leverages the collective experience.
Initial searches should end when the search has been refined, the problem statement is complete, and we have collected a few characteristics about the environment that are believed to be relevant. If at this point the search response is not providing anything that appears relevant, we should move into the analysis phase of problem solving.