You can download the result from your dashboard until a job reaches its retention limitation (16 days since creation ; 'queued at' time).
Instead of manual downloading, you can also set your delivery preference to your webhook or other storages : https://help.brightdata.com/hc/en-us/articles/7673036533265-Dashboard-Delivery-preferences
You will be able to receive job result files into your storage as soon as jobs are done.