Perhaps you should try some spelling variations:
china loren » china lehren, china korea, china more
wang jing » wang ning, wang liang, wang yang
china who » china why, china what, china won
jing sun » wing sun, liang sun, cong sun
yang yao » yang yang, wang yan, yang fan
yang yi » yang di, yang xi, yang jui
hong yu » wong yue

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 jing sun ((china loren) OR (china who)) ((yang yao) OR (yang yi)) hong yu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang jing sun ((china loren) or (china who)) ((yang yao) OR (yang yi)) hong yu ;~".
• Adding a wildcard symbol may retrieve word variants: wang jing sun ((china loren) or (china who)) ((yang yao) OR (yang yi)) hong yu ;*.