Perhaps you should try some spelling variations:
china loren » china lehren, china korea, china more
wang liang » wang yang
liang sun » liang dan, liang tan, wing sun
china who » china why, china what, china won
yang yao » yang yang, wang yan, yang yi
yao wong » yao yang, y wong
wong yue » wang yue, hong yu

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 liang sun ((china loren) OR (china who)) yang yao wong yue ;~.
• Adding a wildcard symbol may retrieve word variants: wang liang sun ((china loren) or (china who)) yang yao wong yue ;*.