Perhaps you should try some spelling variations:
deutsche kultur » ostdeutsche kultur (Expand Search)
die geschichte » zur geschichte (Expand Search)
der geschichte » zur geschichte (Expand Search)
institut fur » instituts fur (Expand Search), instituts zur (Expand Search), institut der (Expand Search)
fur deutsche » fur ostdeutsche (Expand Search), der deutschen (Expand Search), die deutsche (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: institut fur deutsche kultur ((die geschichte) OR (der geschichte)) (sudosteuropas OR sudosteuropa)~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "institut fur deutsche kultur ((die geschichte) OR (der geschichte)) (sudosteuropas OR sudosteuropa)".
• Adding a wildcard symbol may retrieve word variants: institut fur deutsche kultur ((die geschichte) OR (der geschichte)) (sudosteuropas OR sudosteuropa)*.