Perhaps you should try some spelling variations:
yuan chang » yuan cheng, huang chang, han chang
huang yang » huang ying, huang chang, wang yang
rene wang » wen wang
tuan hua » tuan vu, yuan hui
wang qin » wang lin, wang qiao, wang jing
qin wang » qian wang, liqin wang, ping wang
wang yue » wong yue, wang hua, wang yan
tan hua » wang hua, tan chia, tan puay

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((yuan chang) or (huang yang)) ((tan hua) or (tuan hua)) rene wang qin wang yue ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yuan chang) OR (huang yang)) ((tan hua) OR (tuan hua)) rene wang qin wang yue ;.
• Adding a wildcard symbol may retrieve word variants: ((yuan chang) or (huang yang)) ((tan hua) or (tuan hua)) rene wang qin wang yue ;*.