Perhaps you should try some spelling variations:
zheng ming » zhang ming, cheng ming, zheng rong
chen zheng » chen zhen, chen aizheng, cheng zhang
ming jeong » min jeong, ming kong
jeong shu » jeong su, cong shu
lang yan » wang yan, wang yang, zhang yan
yuan li » yuan lin, yuan zi, dayuan li
guan li » gan li, yuan lin

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: "lang yan ((yuan li) OR (guan li)) chen zheng ming jeong shu ;~".
• Adding a wildcard symbol may retrieve word variants: lang yan ((yuan li) OR (guan li)) chen zheng ming jeong shu ;*.