Is there a way to recover a group of closed tabs, no longer in the Recently Closed list.

I noticed that a window with a bunch of tabs was missing. I don't know if i closed it accidentally. I have closed other tabs since so it's no longer in the "Recently Closed" list.

I thought to look under recent tabs on my Android phone but it had just synced up with the desktop a few minutes ago so it only had the most recent open tabs.

Is there a way to recover those tabs? Or maybe to turn back the connection between Desktop and Android to a precious synchronisation so that i could see the tabs that were closed?