Perhaps you should try some spelling variations:
cheng zhang » cheng han, zhen zhang, china zhang
chen zheng » chen zhen, chen aizheng, chen zhe
qian jeong » qian rong, min jeong
yang ping » yang liang, yang using, zhang ping
yang jing » wang jing, yang jin, huang jing
jeong su » jeong _, jeong mi, jeong 情
wang » wing, wan

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 OR lang) ((yang ping) OR (yang jing)) jia ((cheng zhang) OR (chen zheng)) qian jeong su ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(wang or lang) ((yang ping) or (yang jing)) jia ((cheng zhang) OR (chen zheng)) qian jeong su ;~".
• Adding a wildcard symbol may retrieve word variants: (wang or lang) ((yang ping) or (yang jing)) jia ((cheng zhang) OR (chen zheng)) qian jeong su ;*.