Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
yang yang » wang yan
shang hai » shang kai, dang hai, chang ha
wei chen » wei shen, frei chen, jui chen
yang jie » yang jin, yang di, yang yi
yang jui » yang judy, yang di, yang yi
yang xi » yang di, 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: jin ((wang yang) OR (yang yang)) wei chen ((yang jie) OR (((yang xi) OR (yang jui)))) shang hai ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "jin ((wang yang) or (yang yang)) wei chen ((yang jie) or (((yang xi) OR (yang jui)))) shang hai ;~".
• Adding a wildcard symbol may retrieve word variants: jin ((wang yang) or (yang yang)) wei chen ((yang jie) or (((yang xi) OR (yang jui)))) shang hai ;*.