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