Perhaps you should try some spelling variations:
tan chia » tuan china, than china, can china
yang jui » yang judy, yang di, yang xi
wong sam » wong sau, wong lai, kong sar
yan hua » tan hua, ya hua, wang hua
yang ji » yang jie, yang jin, yang di
won sau » wong sau, wong siu
wang » wing, wan, lang

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: wang hyoung ((yan hua) OR (tan chia)) gene ((yang ji) OR (yang jui)) ((won sau) OR (wong sam)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang hyoung ((yan hua) or (tan chia)) gene ((yang ji) or (yang jui)) ((won sau) OR (wong sam)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang hyoung ((yan hua) or (tan chia)) gene ((yang ji) or (yang jui)) ((won sau) OR (wong sam)) ;*.