Perhaps you should try some spelling variations:
xiaodong wang » xiaodong huang, xiaotong zhang, xiaobo wang
change coping » change scoping, change comparing, change becoming
change mowing » change making, change mapping, change working
zhong zhi » zhang zhi, zhong tai
wang can » wang yan, wang ban, wang dan
can when » can women, can we, can win
hong ghi » hong g, hong hai

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 xiaodong wang can when ((change coping) OR (change mowing)) ((hong ghi) OR (zhong zhi)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang xiaodong wang can when ((change coping) OR (change mowing)) ((hong ghi) or (zhong zhi)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang xiaodong wang can when ((change coping) OR (change mowing)) ((hong ghi) or (zhong zhi)) ;*.