Perhaps you should try some spelling variations:
chen cheng » chen chung, chen zhen, hew cheng
chen zheng » chen zhen, chen aizheng, cheng zhang
ming jeong » min jeong, ming kong
jeong shu » jeong su, cong shu
wing yan » wang yan, wing ian, wing tan
yan yuan » yan guan, fang yuan, nan yan
yuan li » yuan lin, guan li, yuan zi

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "wing yan yuan li ((chen cheng) OR (chen zheng)) ming jeong shu ;~".
• Adding a wildcard symbol may retrieve word variants: wing yan yuan li ((chen cheng) OR (chen zheng)) ming jeong shu ;*.