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

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (wang OR wan) yan yuan li ((chen zheng) OR (chen aizheng)) ming jeong shu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(wang or wan) yan yuan li ((chen zheng) OR (chen aizheng)) ming jeong shu ;~".
• Adding a wildcard symbol may retrieve word variants: (wang or wan) yan yuan li ((chen zheng) OR (chen aizheng)) ming jeong shu ;*.