Usually you see terms like: "give us even more lands (typically a city) and pay us a lot of gold and your government has to step down and you have to sell us X amount of food for next 6 months. And you can't fight anyone for 6 months...so boredom yeah!"
From what I hear Vix terms were actually pretty fair, although I haven't seen the proposal. Leaving Caligus with what they have left + a clean slate diplomatically