Hoang has been making trips back to Vietnam since 2006, partnering with the Red Cross to build 5,000 homes in his birth country. As Hoang gives, his focus is on seeing a direct return for each charitable investment. “When I want to give one dollar to one specific person, the recipient has to receive it,” Hoang says. “I don’t want to give like Bill Gates or Warren Buffet. A billion, another billion – what do we have?”