Perhaps you should try some spelling variations:
reformen beim » reformen bei, reformen im, reformen teil
iii reformen » die reformen, iii formen, der reformen
david dang » david mant, david ng
yang yang » wang yang, wang yan
david ian » david a, david n
yang iii » klang iii, yang zili, zwang iii

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: yang yang yang iii reformen beim ((david dang) OR (david ian)) (hai OR hadi) ;~.
• Adding a wildcard symbol may retrieve word variants: yang yang yang iii reformen beim ((david dang) or (david ian)) (hai or hadi) ;*.