Perhaps you should try some spelling variations:
cheng zhang » cheng han, zhen zhang, chen zheng
zhang xin » zhang jian, zhang ming, zhang fan
jeong shu » jeong su
yan yuan » yan guan, fang yuan, nan yan
yi cheng » yi chen, yu cheng, xi cheng
yuan yi » yuan li, yuan zi, yuan fei
wang » wing, wan, lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yan yuan yi cheng zhang xin ((jeong shu) or (cong shu)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yan yuan yi cheng zhang xin ((jeong shu) OR (cong shu)) ;*.