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