Perhaps you should try some spelling variations:
national » nationale (Expand Search), nationala (Expand Search), nationalen (Expand Search)
nationaleen » nationaleeen (Expand Search), nationalaeen (Expand Search), nationaleneen (Expand Search), nationalen (Expand Search), nationale (Expand Search), nationaler (Expand Search)
nationalitaten » nationaleitaten (Expand Search), nationalaitaten (Expand Search), nationalenitaten (Expand Search)
nationaleeren » nationaleeeren (Expand Search), nationalaeeren (Expand Search), nationaleneeren (Expand Search), nationalen (Expand Search), nationaler (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: (national OR ((nationaleen OR nationalitaten) OR nationaleeren)) university of kharkiv~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(national OR ((nationaleen OR nationalitaten) OR nationaleeren)) university of kharkiv".
• Adding a wildcard symbol may retrieve word variants: (national OR ((nationaleen OR nationalitaten) OR nationaleeren)) university of kharkiv*.