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)
nationaleren » nationaleeren (Expand Search), nationalaeren (Expand Search), nationalereren (Expand Search), nationaler (Expand Search), nationale (Expand Search), nationales (Expand Search)
nationalaeeren » nationaleaeeren (Expand Search), nationalaaeeren (Expand Search), nationaleraeeren (Expand Search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "(national OR (nationalen OR (nationaleren OR nationalaeeren))) universitat of kharkiv~".
• Adding a wildcard symbol may retrieve word variants: (national OR (nationalen OR (nationaleren OR nationalaeeren))) universitat of kharkiv*.