Perhaps you should try some spelling variations:
основеіе\\" » основі\\" (Expand Search), основе\\" (Expand Search), основні\\" (Expand Search), основіе\\" (Expand Search), основее\\" (Expand Search), основніе\\" (Expand Search), основіеіе\\" (Expand Search), основееіе\\" (Expand Search)
основеііііе\" » основііііе\" (Expand Search), основеіііе\" (Expand Search), основнііііе\" (Expand Search), основіеііііе\" (Expand Search), основееііііе\" (Expand Search)
основеі\\" » основі\\" (Expand Search), основе\\" (Expand Search), основні\\" (Expand Search), основіеі\\" (Expand Search), основееі\\" (Expand Search)
основ\\" » основі\\" (Expand Search), основе\\" (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: "\"\\"((\\\"ґрунтова ((основеіе\\\" OR основеііііе\\") OR основеі\\\")) OR (\\\"ґрунтова основ\\\"))~\\"\"".
• Removing quotes may allow a broader search: ((\ ґрунтова ((основеіе\ OR основеііііе ) OR основеі\ )) OR (\ ґрунтова основ\ ))~.