The forum's search function struggles with common terms like "big rip," returning no results even when searched as a phrase. Users express frustration over the limitations of the built-in search engine, which does not index short or common words effectively. It is noted that external searches via Google yield immediate results due to its advanced algorithms and superior server capabilities. The discussion highlights the need for improvements in the forum's search functionality to enhance user experience. Overall, reliance on Google for searching forum content is recommended as a more efficient alternative.