Perhaps you should try some spelling variations:
schrifttum uber » schrifttums der (Expand Search)
des schrifttum » des schrifttums (Expand Search), das schrifttum (Expand Search), im schrifttum (Expand Search)
uber deutschen » der deutschen (Expand Search), uber deutschland (Expand Search), unsere deutschen (Expand Search)
band 12 » band 2 (Expand Search), band 11 (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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "forderung des schrifttum uber deutschen aus bessarabien : ((band 1) OR (band 12))~".
• Adding a wildcard symbol may retrieve word variants: forderung des schrifttum uber deutschen aus bessarabien : ((band 1) OR (band 12))*.