Perhaps you should try some spelling variations:
reformen beim » reformen bei, reformen im, reformen teil
der reformen » der reform
beim david » kim david
david dang » david ian, david mant, david ng
yuan wang » yuan kang, yuan chang, qian wang
yan wang » yang yang, qian wang, yan liang
yang der » gang der, yang dean, klang der

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