Perhaps you should try some spelling variations:
national » nationale (Expand Search), nationala (Expand Search), nationaler (Expand Search)
nationalen » nationaleen (Expand Search), nationalaen (Expand Search), nationaleren (Expand Search), nationale (Expand Search)
nationaleen » nationaleeen (Expand Search), nationalaeen (Expand Search), nationalereen (Expand Search), nationale (Expand Search), nationaler (Expand Search), nationales (Expand Search)
nationaleaen » nationaleeaen (Expand Search), nationalaeaen (Expand Search), nationalereaen (Expand Search), nationalitaten (Expand Search), nationale (Expand Search), nationala (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 ((nationalen OR nationaleen) OR nationaleaen)) university of kharkiv~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(national OR ((nationalen OR nationaleen) OR nationaleaen)) university of kharkiv".
• Adding a wildcard symbol may retrieve word variants: (national OR ((nationalen OR nationaleen) OR nationaleaen)) university of kharkiv*.