Perhaps you should try some spelling variations:
wang daoping » wang xiaoping, wang danning, wang xiaobing
than china » tuan china, han china, wuhan china
china data » china update, chinese data
yang mind » sang minh, tang min, yang jing
shang hai » shang kai, dang hai, chang ha
yang jin » yang jie, yang jun, ying jin

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 daoping than china data ((((yang mind) OR (yang cindy))) OR (yang jin)) shang hai ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang daoping than china data ((((yang mind) OR (yang cindy))) or (yang jin)) shang hai ;~".
• Adding a wildcard symbol may retrieve word variants: wang daoping than china data ((((yang mind) OR (yang cindy))) or (yang jin)) shang hai ;*.