Perhaps you should try some spelling variations:
"national academic of sciences of ukraine" » "nationale academic of sciences of ukraine" (Expand Search), "nationala academic of sciences of ukraine" (Expand Search), "nationaler academic of sciences of ukraine" (Expand Search)
"nationalen academic of sciences of ukraine" » "nationaleen academic of sciences of ukraine" (Expand Search), "nationalaen academic of sciences of ukraine" (Expand Search), "nationaleren academic of sciences of ukraine" (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 academic of sciences of ukraine") OR ("nationalen academic of sciences of ukraine"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"national academic of sciences of ukraine\") OR (\"nationalen academic of sciences of ukraine\"))".
• Removing quotes may allow a broader search: (( national academic of sciences of ukraine ) OR ( nationalen academic of sciences of ukraine )).
• Adding a wildcard symbol may retrieve word variants: (("national academic of sciences of ukraine") OR ("nationalen academic of sciences of ukraine"))*.