Perhaps you should try some spelling variations:
cheng zhang » cheng han, zhen zhang, china zhang
chen zheng » chen zhen, chen aizheng, chen zhe
min jeong » kin keong, min hong, mun leong
jeong shu » jeong su, cong shu
yan yuan » yan guan, fang yuan, nan yan
yuan zi » yan zi, yuan li, yuan fei
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 yuan zi ((chen zheng) OR (cheng zhang)) min jeong shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (wang OR wan) yan yuan zi ((chen zheng) OR (cheng zhang)) min jeong shu ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(wang or wan) yan yuan zi ((chen zheng) OR (cheng zhang)) min jeong shu ;*".