Perhaps you should try some spelling variations:
cheng zhang » cheng han, zhen zhang, china zhang
wang liang » wang yang
chen zheng » chen zhen, chen aizheng, chen zhe
liang yan » liang dan, liang tan, liang ying
fan yong » fan ying, tan yong, wang yong
fan xing » fan ying, fan xibo, tan xin
yan hua » tan hua, ya hua, wang hua

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 liang yan hua ((cheng zhang) OR (chen zheng)) ((fan yong) OR (fan xing)) ago ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang liang yan hua ((cheng zhang) OR (chen zheng)) ((fan yong) or (fan xing)) ago ;~".
• Adding a wildcard symbol may retrieve word variants: wang liang yan hua ((cheng zhang) OR (chen zheng)) ((fan yong) or (fan xing)) ago ;*.