Perhaps you should try some spelling variations:
yan zhang » yuan chang, bin zhang, han chang
zhang wei » zhen wei
wei sheng » kwei sheng, wei shang, lei sheng
shang kai » shang hai
yang jun » yang jui, pang jun, yang jin
nan yan » nan ya, wang yan, qian yan
yang xi » yang jui
yang yi » yang jui

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: nan yan zhang wei sheng ((((((yang xi) OR (yang di))) OR (yang jun))) OR (yang yi)) shang kai ;~.
• Adding a wildcard symbol may retrieve word variants: nan yan zhang wei sheng ((((((yang xi) or (yang di))) or (yang jun))) or (yang yi)) shang kai ;*.