Perhaps you should try some spelling variations:
yulu cheng » yulu chen, yu cheng, yuan cheng
cheng ming » cheng bing, cheng ling, chen ping
sein dann » sein kann, sein das, bin dann
yang july » yang judy, yang jui, yang jun
ming jin » ying jin, min jin, ming qing
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 or doing) sein dann yulu cheng ming jin ((wang yue) or (yang july)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (dong OR doing) sein dann yulu cheng ming jin ((wang yue) OR (yang july)) ;*.