Perhaps you should try some spelling variations:
lang yan » wang yan, wang yang, zhang yan
yang jie » yang jin, yang di, yang jui
wong sam » wong sau, wong lai, kong sar
yan yan » yan yuan, nan yan, yang yang
yan hua » tan hua, ya hua, wang hua
yang ji » yang jui, yang jin, yang di
won sau » wong sau, wong siu

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

• Performing a fuzzy search may retrieve terms with similar spellings: lang yan yan hua (rene or irene) ((yang ji) or (yang jie)) ((won sau) OR (wong sam)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: lang yan yan hua (rene OR irene) ((yang ji) OR (yang jie)) ((won sau) OR (wong sam)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "lang yan yan hua (rene or irene) ((yang ji) or (yang jie)) ((won sau) OR (wong sam)) ;".
• Adding a wildcard symbol may retrieve word variants: lang yan yan hua (rene or irene) ((yang ji) or (yang jie)) ((won sau) OR (wong sam)) ;*.