can you find older back ups for iphone, if it does not show up in icloud ?
Can you restore from older backups on iphone, if it does not show up in icloud?
No.
iCloud does not keep a history of backups, it updates the current file on each backup.
However, if you are also backing up the phone to your Mac....and......the Mac is backing up using Time Machine......then you do have a history of each backup to access.