Using the Filter

If you use the Keyword Filter in the left sidebar (you may need to click on the down arrow to the right of the word "Filter" first, to see the boxes), the results will be shown graphically in whatever view you're in.

Hit the red X button to see all of your selected event calendars.

If you click on the magnifying glass search icon in the top right of the screen, type your search and click the Search button, the results will be shown in a list.

Hit the Close button to cancel the search and go back to your previous view.