Perhaps you should try some spelling variations:
wang xiaoping » wang xiaodong, deng xiaoping, wang xiaolin
wang kyoung » wang hyoung, hwang byoung, wang yong
kyoung wang » kyoung yang
sheng zhang » cheng zhang, shen chang, zhang zhang
box cong » box cost, box wing
box cox » box box, box cost

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 kyoung wang xiaoping ((sheng zhang) OR (zhen zhang)) ((box cong) OR (box cox)) shu ;~.
• Adding a wildcard symbol may retrieve word variants: wang kyoung wang xiaoping ((sheng zhang) or (zhen zhang)) ((box cong) or (box cox)) shu ;*.