Perhaps you should try some spelling variations:
xiaodong huang » xiaotong zhang
lang xiaodong » wang xiaodong, wang xianodong, lin xiaodong
sang minh » kang minah, anh minh, song min
dang hadi » dang hai
huang vu » hoang vu, huang _, huang di
yang jui » yang judy, yang di, yang xi

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: lang xiaodong huang vu daun ((sang minh) OR (yang jui)) dang hadi ;~.
• Adding a wildcard symbol may retrieve word variants: lang xiaodong huang vu daun ((sang minh) or (yang jui)) dang hadi ;*.