Perhaps you should try some spelling variations:
china loren » china lehren, china korea, china more
wang ning » wang jing, wang liang, wang yang
china who » china why, china what, china won
yang yang » wang yang, wang yan
yang hong » wang hong, yang hongli, quang hong
ning sun » nina sun, wing sun, liang sun
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 ning sun ((china loren) OR (china who)) yang yang hong yu ;~.
• Adding a wildcard symbol may retrieve word variants: wang ning sun ((china loren) or (china who)) yang yang hong yu ;*.