Sometimes, you can't fit everything into a card that you might want to. To accommodate, you can make your cards expandable, meaning that the user can click on an expand button to reveal additional content.
If you're trying to fit too much content into a Card, making the card expandable just masks the problem. Instead, consider a different approach to displaying information about the subject in question. For example, maybe, instead of a card, the subject is worthy of its own page.