Perhaps you should try some spelling variations:
national » nationale (Expand Search), nationalen (Expand Search), nationaler (Expand Search)
nationala » nationalea (Expand Search), nationalena (Expand Search), nationalera (Expand Search), nationale (Expand Search), nationalen (Expand Search), nationaler (Expand Search)
nationaleser » nationaleeser (Expand Search), nationaleneser (Expand Search), nationalereser (Expand Search), nationaler (Expand Search), nationales (Expand Search), nationale (Expand Search)
nationalereser » nationaleereser (Expand Search), nationalenereser (Expand Search), nationalerereser (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 ((nationala OR nationaleser) OR nationalereser)) universitat of kharkiv~".
• Adding a wildcard symbol may retrieve word variants: (national OR ((nationala OR nationaleser) OR nationalereser)) universitat of kharkiv*.