No, there is no published rule that lets you have more than one bonus action per turn. If anyone is doing more than one, then there is a house rule at play, but nothing official.
That's what I thought. 1 bonus action and 1 reaction per turn per character/creature although can drag combat out its manageable. Adding in held/readied actions that's when it gets a little unruly. 1E and 2E were either attack and move, full attack, full move or use a magical item right, at least until the combat and tactics came out?