Perhaps you should try some spelling variations:
zhang ming » zhang xin
zheng min » cheng ming, chang min, zheng liu
jeong shu » jeong su, cong shu
yan guan » yan yuan, yang guang, yihan guan
gan guan » quan guan, fan guon, gui guan
li chen » 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 guan) OR (gan guan)) li chen ((zheng min) OR (zhang ming)) jeong shu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((yan guan) or (gan guan)) li chen ((zheng min) OR (zhang ming)) jeong shu ;~".
• Adding a wildcard symbol may retrieve word variants: wang ((yan guan) or (gan guan)) li chen ((zheng min) OR (zhang ming)) jeong shu ;*.