Perhaps you should try some spelling variations:
yong zhang » yong phang, kong hang, yan zhang
zhang wei » zhen wei
shang hai » shang kai, dang hai, chang ha
tan yong » tan hong, tan kong, tan yang
yang fan » zhang fan, yang dean, yang yang
yang jui » yang judy, yang yi
yang xi » yang yi

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: tan yong zhang wei shang ((((((yang fan) OR (yang xi))) OR (yang jui))) OR (yang di)) shang hai ;~.
• Adding a wildcard symbol may retrieve word variants: tan yong zhang wei shang ((((((yang fan) or (yang xi))) or (yang jui))) or (yang di)) shang hai ;*.