Yes, Vietnamese green bean paste confections are quite good.
What you are eating are called "Rong Vang". Or Banh dau xanh rong vang. Gia Bao is the brand name, or the company that makes them. Banh means "cake". So you are eating green bean cakes. The ingredients are sugar, green bean paste, flour, water. Sometimes coffee beans are added to give it a kick. I don't know if yours have caffeine or not. Probably yes, since you seem to like them. Sugar + Caffeine + Protein is a winning combination. They might have more calories than you think, so be careful, if you're on a diet.