Perhaps you should try some spelling variations:
david mant » david ian, david ma, david malone
yang zili » yang dali
yan wang » yuan wang, yang yang, qian wang
yang lin » yang jin, wang lin, yang liang
reform a » reform _
mant hai » dang hai
yang li » yang di, yang xi, yang yi
a david » 2 david, a davis, de david

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: yan wang ((yang zili) OR (((yang li) OR (yang lin)))) reform a david mant hai ;~.
• Adding a wildcard symbol may retrieve word variants: yan wang ((yang zili) or (((yang li) or (yang lin)))) reform a david mant hai ;*.