He did not know his father until 2001 when he travelled from the United States to Australia .
Van Tuong Nguyen and his twin brother , Dang Khoa Nguyen , were born in a refugee camp at Songkhla in Thailand to Vietnamese parents .
Van Tuong Nguyen did not know Van Tuong Nguyen 's father until 2001 when he travelled from the United States to Australia .
Van Tuong Nguyen and his twin brother , Dang Khoa Nguyen , were born in a refugee camp at Songkhla in Thailand to Vietnamese parents .