Perhaps you should try some spelling variations:
donauschwabische herkunftsforschung » donauschwabischen herkunftsforschung (Expand Search)
schriftenreihe des » schriftenreihe der (Expand Search)
schriftenreihe a » schriftenreihe der (Expand Search), schriftenreihe zur (Expand Search)
band 12 » band 2 (Expand Search), band 1 (Expand Search), band 11 (Expand Search)

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((schriftenreihe des) OR (schriftenreihe a)) donauschwabische herkunftsforschung; band 12~".
• Adding a wildcard symbol may retrieve word variants: ((schriftenreihe des) OR (schriftenreihe a)) donauschwabische herkunftsforschung; band 12*.