Complex sentence: In the event, his efforts netted surprising results; he proved able to win hearts and minds, and managed to turn the tide against the communists active in Kiến Hòa.
Split into simpler sentences: In the event, his efforts netted surprising results. Châu's innovative methods and practices proved able to win over the hearts and minds of the people, eventually turning the tide against Viet Cong activity in Kiến Hòa.