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

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) OR (david ian)) hai ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "yan wang ((yang zili) or (((yang li) or (yang lin)))) reform a ((david mant) OR (david ian)) hai ;~".
• Adding a wildcard symbol may retrieve word variants: yan wang ((yang zili) or (((yang li) or (yang lin)))) reform a ((david mant) OR (david ian)) hai ;*.