Perhaps you should try some spelling variations:
yulu cheng » yulu chen, yuan cheng
dong sein » dong sin, dong bin, ong sean
dong wei » wang wei, dong di, dong hoi
yu cheng » yu chen, _ cheng
tong hui » wang hui
hui wang » hui yang, hui ping, hui tong
wang yue » wong yue, wang hua, wang yan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((dong sein) OR (dong wei)) dann ((yulu cheng) or (yu cheng)) tong hui wang yue ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((dong sein) OR (dong wei)) dann ((yulu cheng) OR (yu cheng)) tong hui wang yue ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((dong sein) OR (dong wei)) dann ((yulu cheng) or (yu cheng)) tong hui wang yue ;*".