Perhaps you should try some spelling variations:
cheng zhang » cheng han, zhen zhang, chen zheng
chen zhang » zhen zhang, chen zheng, chen shuang
ming jeong » min jeong, ming kong
jeong shu » jeong su, cong shu
nan yan » nan ya, qian yan, dan yang
yuan yi » yuan li, yuan zi, yuan fei
yan zi » yan zhi, yuan zi, ban zi

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