Perhaps you should try some spelling variations:
forderungs das » forderungs des (Expand Search), forderung des (Expand Search), forderung der (Expand Search)
das schrifttum » des schrifttums (Expand Search)
schrifttum der » schrifttums der (Expand Search), schrifttum uber (Expand Search), schrifttum heft (Expand Search)
band 6 » band 2 (Expand Search), band i (Expand Search), band 4 (Expand Search)
band 1 » band 2 (Expand Search), band i (Expand Search)

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

• Performing a fuzzy search may retrieve terms with similar spellings: forderungs das schrifttum der deutschen aus bessarabien : ((band 6) OR (band 1))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "forderungs das schrifttum der deutschen aus bessarabien : ((band 6) OR (band 1))".
• Adding a wildcard symbol may retrieve word variants: forderungs das schrifttum der deutschen aus bessarabien : ((band 6) OR (band 1))*.