Hi Linnea,
Thanks for reaching out–happy to help clarify this for you! Our keyword search, which functions as part of our core calendar plugin The Events Calendar, behaves in the same manner as a standard WordPress keyword search and searches for matching keywords within event titles, descriptions, and excerpts. Events Calendar PRO‘s location search employs a different search mechanic entirely, bypassing a keyword search in favor of a true location search based on Google Maps geolocation data for your event venues. 🙂
I hope that helps to clear things up a bit! Thanks again, and let me know if you should have any other questions!