Search Mechanism

Currently there is no search functionality built in.

Then why is search documented?
https://docs.simplecalendar.io/google-calendar-search-queries/

Oh I apologize I thought you meant searching for calendars from a user standpoint on the front-end of the site. Yes you can follow the Google guidelines for using their search engine in the search query box.

Thanks, but how do I turn the search query box on? https://www.mduuc.org/calendar/

I think there is still a misunderstanding. There is not a way for your users to search, that search query box is only for your use to filter out events from the calendar before it is displayed.