So, it's easy to fix your problem of how to restore documents from emptied trash, and what you need is professional data recovery software.
I recommend iBoysoft Data Recovery for Mac, which has a robust algorithm that can help you recover your lost documents from emptied trash.
iBoysoft Data Recovery for Mac can help you recover deleted documents from emptied trash, but also help you recover files from portable HDDs, SDDs, SD cards, and USB drives in all brands, including WD, TOSHIBA, Seagate, etc. And it supports all kinds of files to recover, such as photos, videos, documents, etc.
Now, follow the steps to recover your documents from emptied trash.
Step 1: Free download and launch iBoysoft Data Recovery for Mac.
Step 2: Choose the drive or partition where you delete files.
Step 3: Click Scan to start scanning.
Step 4: Preview the search result and choose the files you want to recover.
Step 5: Click Recover.