Perhaps you should try some spelling variations:
dong nana » dong nan, dong yang
yang yang » wang yang
chen yuan » chen yulan, chen yun, chen yugang
yuan tan » huan t'an, yuan kang, yuan ting
wong yue » hong yu
wang yue » wang hua, wang he, wang hui
yu chen » yu cheng, yi chen, yulu chen
tan yu » tian yu, tan yi, tang yun

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

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