I came in Vietnam in January 2019, with 3 friends and we stayed 2 weeks in Mai Chau with VEO. Our volunteer work was basicaly based on giving english lessons in the morning at school for the kids and at night in the village for local people, and in the afternoon helping in a farm and rice paddies.
I would a 100% recommand to live this adventure at least once in your life because furthermore you give help, time and love and you receive so much more, it's on my opinion the best way to really learn about local people, an other culture and way of life.
Our homestay was really nice, we were comfortably settled, and the food was so delicious ! We had the best welcome we could imagine and VEO and espacially Hai, made our stay even more rewarding! I'll always remember it, and will definitely do it again, thank you!