How can we search submissions for specific data?

How do I  find out who has registered for a specific event.  All my registrations are all jumbled together and I want to be able to look at each event separately so i can know the names of people that registered for that event.  Even when I download it they are still all together and I need to know how to separate them. 

While viewing your submissions, there is a search bar at the bottom:

https://www.jotform.com/help/269-How-to-view-Submissions

You can search for the specific event text and then view or export only the submissions that match that text.