Since you accidentally emptied the Mac Trash, all deleted files in it are wiped from your Mac. The quick and effective way to bring them back is to use professional data recovery software -- iBoysoft Data Recovery Software to scan for lost files. It scans the hard drive bit by bit and sector by sector and searches for the traces of the emptied files.
You can download iBoysoft Data Recovery Software here to recover emptied trash files on Mac.
And if you want to recover the deleted files from Mah Trasah which has not been emptied, just select the files you want in Mac Trash > right-click them > select Put Back from the dropdown menu. Then the files will back to the original folder or path.
