Perhaps you should try some spelling variations:
cheng han » chen hao
ming cong » minh cong, ming kong, ming code
gan guan » quan guan, fan guon, gui guan
yan guan » yan yuan, yang guang, yihan guan
yan clan » das clan, yan yuan
li cheng » li chen, xi cheng, lei sheng
han ming » chan ming, han min, wan ming

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

• Performing a fuzzy search may retrieve terms with similar spellings: (lang or wan) ((((yan guan) OR (gan guan))) or (yan clan)) li cheng han ming cong shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (lang OR wan) ((((yan guan) OR (gan guan))) OR (yan clan)) li cheng han ming cong shu ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(lang or wan) ((((yan guan) OR (gan guan))) or (yan clan)) li cheng han ming cong shu ;*".