When scheduler job with autodrop attribute set to "true" finishes it is dropped and can not be accessed / found on Schema browser any more.
But it's run log, which can be very useful stays available for some time (data can be fetched from user_scheduler_job_run_details view), but it can not be accessed directly from TOAD's UI.
It will be nice to have a simple overview of scheduler job run logs with simple search option similar to Schema browser search.