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)
fur forderung » zur forderung (Expand Search)
verein fur » vereins fur (Expand Search), vereine fur (Expand Search), vereins zur (Expand Search)

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: verein fur forderung des schrifttum uber deutschen aus bessarabien~.
• Adding a wildcard symbol may retrieve word variants: verein fur forderung des schrifttum uber deutschen aus bessarabien*.