Perhaps you should try some spelling variations:
dean reformen » den reformen, der reformen, dessen reformen
reformen der » formen der, reform der
wang liang » wang yang
liang dean » liang dan, yang dean, lane dean
yan wang » yuan wang, yang yang, qian wang
david ng » david g, david n, david _

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 liang dean reformen der ((david ng) OR (david a)) hai ;~.
• Adding a wildcard symbol may retrieve word variants: yan wang liang dean reformen der ((david ng) or (david a)) hai ;*.