Perhaps you should try some spelling variations:
reformen beim » reformen bei, reformen im, reformen teil
beim david » kim david
david dang » david ian, david mant, david ng
yan wang » yuan wang, yang yang, qian wang
yang die » yang di, yang jie, klang die
yang jin » yang jie, yang jun, ying jin

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 die) OR (yang jin)) reformen beim david dang (hai OR hari) ;~.
• Adding a wildcard symbol may retrieve word variants: yan wang ((yang die) or (yang jin)) reformen beim david dang (hai or hari) ;*.