Everything deleted from recently deleted folder. Is it permanent? Can I recover items?

Is there a way to recover photos/videos that have been deleted from the recently deleted album? My kids went in and deleted all photos and videos on their ipads and also deleted in the recently deleted folder? They share an apple account and thought they figured out a way that they wouldn't see each others photos and then went and deleted everything. Everything is now permanently gone and I can't bring anything back as they deleted in recently deleted as well. Now they are very upset. Is there anyway to retrieve the items?