Perhaps you should try some spelling variations:
yuan chang » yuan cheng, huang chang, han chang
yuan wang » yan wang, yuan kang, qian wang
tuan hua » yuan hui
yang jun » yang jui, pang jun, yang jin
jun hong » tan hong, tin hong, can hong
tan hua » wang hua, tan chia, tan puay
tuan vu » thanh vu
hong yu » wong yue
rene » rent, gene

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

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