Perhaps you should try some spelling variations:
nationales » nationale (Expand Search), nationalist (Expand Search), nationala (Expand Search)
nationaler » nationale (Expand Search), nationala (Expand Search)
nationalen » nationale (Expand Search)
nationalenaen » nationaleaen (Expand Search), nationalitaten (Expand Search)
rationalen » nationale (Expand Search)
university » universitat (Expand Search)

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((nationales OR nationaler) OR nationalen) OR (rationalen OR nationalenaen)) university of kharkiv~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((nationales OR nationaler) OR nationalen) OR (rationalen OR nationalenaen)) university of kharkiv".
• Adding a wildcard symbol may retrieve word variants: (((nationales OR nationaler) OR nationalen) OR (rationalen OR nationalenaen)) university of kharkiv*.