I think the only way to recover deleted jobs is from Database backup. So if you have Database backup before job was run then you recover lost job.
Just in case, something insane
- Are you trying to find them with the same role you were using?
- Are you accessing the same environment - PROD/DEV/UAT?
- They might be moved to some other location? But, you've already used Search option.
If they are really removed, check in the AppServer (CONFIG/UI type) logs.