Perhaps you should try some spelling variations:
reformen beim » reformen im, reformen teil, reformen der
reformen bei » reformen teil, reformen der, reformen des
david dang » david ian, david mant, david ng
wang yang » wang yan, wang liang, wang yanling
yan wang » yuan wang, yang yang, qian wang
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: yan wang yang iii ((reformen beim) OR (reformen bei)) david dang (hai OR haji) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "yan wang yang iii ((reformen beim) OR (reformen bei)) david dang (hai or haji) ;~".
• Adding a wildcard symbol may retrieve word variants: yan wang yang iii ((reformen beim) OR (reformen bei)) david dang (hai or haji) ;*.