Perhaps you should try some spelling variations:
wang xiaoping » wang xiaodong, deng xiaoping, wang xiaolin
wang daoping » wang danning, wang xiaobing, wang leiping
hai irene » hai ren
phan thi » pham thi, nhan thi, tran thi
thi hong » tan hong
hong yu » wong yue
dang » dan, lang, yang

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) OR (wang xiaoping))) OR (wang yanling)) dang hai irene phan thi hong yu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((wang daoping) OR (wang xiaoping))) or (wang yanling)) dang hai irene phan thi hong yu ;~".
• Adding a wildcard symbol may retrieve word variants: ((((wang daoping) OR (wang xiaoping))) or (wang yanling)) dang hai irene phan thi hong yu ;*.