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