Career
On 13 April in an 2013 AFC Cup game against SHB Đà Nẵng Hein conceded a last minute penalty and was red carded in the last minute of the game. Nguyễn Minh Phương scored the penalty kick to wing the game 3-2. Hein"s teammate Phyo Ko Ko Thein was also sent off minutes earlier in the same game.
In the 2015 AFC Cup group stage Hein sent off with a quarter of an hour to play against New Radiant South Carolina (U.S.), in an eventual scoreless draw.
Hein Thiha Zaw made his senior debut in a friendly match against Hong Kong on 7 November 2015.