Perhaps you should try some spelling variations:
yuan chang » yuan cheng, huang chang, han chang
rene wang » wen wang
wang amin » wang limin, wang lin, wang qin
amin wong » amin hong, min hong
tuan hua » tuan vu, yuan hui
wong yue » wang yue, hong yu
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 ((tan hua) or (tuan hua)) rene wang amin wong yue ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: yuan chang ((tan hua) OR (tuan hua)) rene wang amin wong yue ;.
• Adding a wildcard symbol may retrieve word variants: yuan chang ((tan hua) or (tuan hua)) rene wang amin wong yue ;*.