Who was the founder of Hoa Hao Movements? Explain his contribution to his country?

The founder of the Hoa Hao movement was Huyn Phi So. He founded the movement in 1939. He contributed majorly for his country. His contribution is as follows.

1) It criticised the useless expenses done on useless things. It had a wide reach.

2) The movement stood for the child and opposed the sale of a child bride.

3) It helped the poor and needy people.

4) The founder opposed gambling, use of alcohol and opium.