Perhaps you should try some spelling variations:
cheng zhang » cheng han, zhen zhang, chen zheng
zhang min » zhang ming, zhang xin, chang min
jeong shu » jeong su
yan guan » gan guan, yan yuan, yang guang
li cheng » li chen, xi cheng, lei sheng
guan li » gan li, yuan li, yuan lin
wang » wing, lang

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 wan) yan guan li cheng zhang min ((jeong shu) OR (cong shu)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (wang OR wan) yan guan li cheng zhang min ((jeong shu) OR (cong shu)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(wang or wan) yan guan li cheng zhang min ((jeong shu) OR (cong shu)) ;*".