How can I get back pictures that’s is deleted from recently deleted

This is what Apple says:

Delete photos on your iPhone, iPad, and iPod touch - Apple Support

"If you want to permanently delete your photos or videos, you can remove them from the Recently Deleted album. When you delete a photo from this album, you can't get it back. "

If you were not using iCloud photos to sync your photographs then they may still be stored on another device or as part of a backup. You can restore the backup ( Restore your iPhone, iPad, or iPod touch from a backup - Apple Support ) to recover the photos but doing this will require erasing your device and restoring everything back to the time when you made that backup.

If you weren't syncing photos with iCloud, do you have a backup you can restore from? Restoring from a backup erases all data currently on your device. Any data newer than when the backup was made will be erased. A restore is an all or nothing restore. You can't access a backup to see the contents and only restore certain files.

Backup - Restore your device from an iCloud or iTunes backup.  

If you were syncing photos with iCloud, check iCloud.com/Photos using a browser for a Recently Deleted album. If they aren't there, you can't recover the photos.