Perhaps you should try some spelling variations:
reformen beim » reformen bei, reformen im, reformen teil
die reformen » die reform, die formen, der reformen
wang klang » wang liang, wang yang, lang lang
david dang » david ian, david mant
klang die » klang der, klang iii, klaue die
yan wang » yuan wang, yang yang, qian wang
david ng » david g, david n, david a

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