Perhaps you should try some spelling variations:
cheng zhang » cheng han, zhen zhang, china zhang
chen zheng » chen zhen, chen aizheng, chen zhe
liang yan » liang dan, liang ying, wang yan
liang tan » liang dan, liang sun, wing tan
fan ying » fan xing, ran ying, tan ying
ying ago » long ago, ying loo

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