Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
yan wang » yuan wang, qian wang, yan liang
tuan hua » tuan vu, yuan hui
pang can » pang jun, kang ca, lung can
can hong » tan hong, care hong, wang hong
tan hua » wang 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: ((yan wang) OR (yang yang)) ((tan hua) or (tuan hua)) rene pang can hong yu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yan wang) OR (yang yang)) ((tan hua) OR (tuan hua)) rene pang can hong yu ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yan wang) OR (yang yang)) ((tan hua) or (tuan hua)) rene pang can hong yu ;".
• Adding a wildcard symbol may retrieve word variants: ((yan wang) OR (yang yang)) ((tan hua) or (tuan hua)) rene pang can hong yu ;*.