Search Results Help (combine 2 search engines)

We use 2 different plugins on our site and we wanted to see if we could use 1 search bar that searches everything. The 2 plugins: 1 is OutoftheBox Dropbox and it searches only within the Dropbox folders. The other is the calendar plugin that only searches the calendar. The search on the site is through Jetpack and will not search within these 2 plugins on its own.

We have purchased SearchWP and it said we could have supplemental search engines but the setup is way too complicated for me. I tried and it broke my site. (Im in the middle of restoring it as I write this).

If its not possible I would like to know so I could stop spending so much time on it.