Perhaps you should try some spelling variations:
chen cheng » chen chung, chen zheng, chen zhen
cheng ming » cheng bing, cheng ling, chen ping
ming cong » minh cong, ming kong, ming code
yan yuan » yan guan, fang yuan, yan clan
nan yan » nan ya, wang yan, qian yan
zi chen » zhi chen, yi chen, li chen
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) OR (nan yan)) zi chen cheng ming cong shu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((yan yuan) OR (nan yan)) zi chen cheng ming cong shu ;*".