Perhaps you should try some spelling variations:
sudostlichen europa » ostlichen europa (Expand Search)
zur volkskunde » fur volkskunde (Expand Search)
volkskunde e.v » volkskunde _ (Expand Search)
instituts zur » instituts fur (Expand Search), instituts der (Expand Search), institut der (Expand Search)
e.v deutschen » der deutschen (Expand Search), die deutschen (Expand Search), des deutschen (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: instituts zur volkskunde e.v deutschen _ sudostlichen europa~.
• Adding a wildcard symbol may retrieve word variants: instituts zur volkskunde e.v deutschen _ sudostlichen europa*.