Can I retrieve a project under "work" that I accidentally deleted in QBOA?

Hi there, 

QuickBooks Online makes it easy to access some of the data you've mistakenly deleted. I'd be happy to give you a hand with this. 

Since the project is already deleted, I recommend going through your audit log, locating the project and restoring it from there. You can access your audit log by clicking the Gear icon and navigating to Audit log. I'll attach a screenshot of what my audit log looks like:

Let me know if need further assistance. I'll be happy to steer you in the right direction.