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 hong » min hong, among hong, tin hong
tuan hua » tuan vu, yuan hui
tan hua » tan chia, tan puay
hong yu » wong yue

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 (wang hua))) or (tuan hua)) rene wang amin hong yu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: yuan chang ((((tan hua) OR (wang hua))) OR (tuan hua)) rene wang amin hong yu ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "yuan chang ((((tan hua) OR (wang hua))) or (tuan hua)) rene wang amin hong yu ;".
• Adding a wildcard symbol may retrieve word variants: yuan chang ((((tan hua) OR (wang hua))) or (tuan hua)) rene wang amin hong yu ;*.