Perhaps you should try some spelling variations:
xiaoping than » xiaoping shi
xiaoping how » mapping how, xiaoping _, xiaoping shi
china wen » chia wen, china won, china women
ching wen » ching kwan, ching fein, ching hea
jie zhang » jia zhang, li zhang, bin zhang
zhang hai » zhang dai, shang hai, zhang han
yang jie » yang jin, yang di, yang jui

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 ((xiaoping than) OR (xiaoping how)) ((china wen) OR (ching wen)) yang jie zhang hai ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((xiaoping than) or (xiaoping how)) ((china wen) OR (ching wen)) yang jie zhang hai ;~".
• Adding a wildcard symbol may retrieve word variants: wang ((xiaoping than) or (xiaoping how)) ((china wen) OR (ching wen)) yang jie zhang hai ;*.