Perhaps you should try some spelling variations:
chen zhang » cheng zhang, zhen zhang, chen zheng
xin jeong » kin keong, xin tong
min jeong » kin keong, min hong, mun leong
nan yang » dan yang, tan yang, wang yang
nan yan » nan ya, wang yan, qian yan
yi chen » jui chen
wang » wing, wan

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

• Performing a fuzzy search may retrieve terms with similar spellings: (wang or lang) ((nan yang) or (nan yan)) yi chen zhang ((xin jeong) OR (min jeong)) su ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (wang OR lang) ((nan yang) OR (nan yan)) yi chen zhang ((xin jeong) OR (min jeong)) su ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(wang or lang) ((nan yang) or (nan yan)) yi chen zhang ((xin jeong) OR (min jeong)) su ;*".