Perhaps you should try some spelling variations:
ying zhang » ying chang, bin zhang, yan zhang
zhang jin » zhang jian, zhang jing, shang jin
lang yan » wang yan, wang yang, zhang yan
wong sam » wong sau, wong lai, wong max
yang xi » yang yi, yang jui
von sam » von sa, von sap, von scham
sar » sara, star, saur

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 yan ((yang xi) OR (yang di)) ying zhang jin ((((wong sam) OR (von sam))) OR (kong sar)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "lang yan ((yang xi) or (yang di)) ying zhang jin ((((wong sam) OR (von sam))) or (kong sar)) ;~".
• Adding a wildcard symbol may retrieve word variants: lang yan ((yang xi) or (yang di)) ying zhang jin ((((wong sam) OR (von sam))) or (kong sar)) ;*.