Perhaps you should try some spelling variations:
deutsches schrifttum » altdeutsches schrifttum (Expand Search), deutsche schrift (Expand Search)
schrifttum russ » schrifttum und (Expand Search)
fur deutsches » fur deutsche (Expand Search), zur deutschen (Expand Search), fruher deutsches (Expand Search)
russ sprache » und sprache (Expand Search)
buch fur » auch fur (Expand Search), buch nr (Expand Search), buch der (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: buch fur deutsches schrifttum russ sprache e.v.~.
• Adding a wildcard symbol may retrieve word variants: buch fur deutsches schrifttum russ sprache e.v.*.