Perhaps you should try some spelling variations:
chen cheng » chen chung, chen zheng, chen zhen
cheng ming » cheng bing, cheng ling, chen ping
ming cong » minh cong, ming kong, ming code
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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((yan guan) OR (gan guan)) li chen cheng ming cong shu ;~".
• Adding a wildcard symbol may retrieve word variants: wang ((yan guan) OR (gan guan)) li chen cheng ming cong shu ;*.