Searching on this site uses Search++, a highly enhanced search system for concrete5.
Have a play, enter some multi-word searches that you know would be defeated by the core page search and see how they are handled by Search++.
For example, the core search would find "Magic Tabs", but would return no results for any of:
Search++ handles full phrases and individual words, stemming, synonyms, abbreviations and acronyms, building a ranked search to list the best matches.
Watch a demonstration of Search++ on the August 2019 Town Hall screencast.