Perhaps you should try some spelling variations:
wang daoping » wang xiaoping, wang danning, wang xiaobing
wang ning » wang jing, wang liang, wang yang
das yang » dan yang, adam yang, das lange
yang jin » yang jie, yang jun, ying jin
jin how » john how
how hci » how heis
tony a » tony j
tony h » tony j

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang ning) OR (wang daoping)) ((tony a) OR (tony h)) das yang jin how hci ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang ning) OR (wang daoping)) ((tony a) OR (tony h)) das yang jin how hci ;*.