Perhaps you should try some spelling variations:
chen zhang » cheng zhang, zhen zhang, chen zheng
ming jeong » min jeong
ming kong » king kong, sing kong, hong kong
yan guan » gan guan, yang guang, yihan guan
yan yuan » fang yuan, yan clan, yan kun
nan yan » nan ya, wang yan, qian yan
yi chen » jui chen
wang » wing, wan, 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 ((((yan yuan) OR (nan yan))) OR (yan guan)) yi chen zhang ((ming jeong) OR (ming kong)) shu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((((yan yuan) or (nan yan))) or (yan guan)) yi chen zhang ((ming jeong) OR (ming kong)) shu ;~".
• Adding a wildcard symbol may retrieve word variants: wang ((((yan yuan) or (nan yan))) or (yan guan)) yi chen zhang ((ming jeong) OR (ming kong)) shu ;*.