Perhaps you should try some spelling variations:
основііе\\" » основі\\" (Expand Search), основе\\" (Expand Search), основні\\" (Expand Search), основіііе\\" (Expand Search), основеііе\\" (Expand Search)
основііеііе\\" » основіііе\\" (Expand Search), основеііе\\" (Expand Search), основніііе\\" (Expand Search), основіііеііе\\" (Expand Search), основеііеііе\\" (Expand Search)
основные\\" » основе\\" (Expand Search), основні\\" (Expand Search), основіные\\" (Expand Search), основеные\\" (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 ((основііе\\\" OR основные\\\") OR основііеііе\\\")) OR (\\\"ґрунтова основ\\\"))~\\"\"".
• Removing quotes may allow a broader search: ((\ ґрунтова ((основііе\ OR основные\ ) OR основііеііе\ )) OR (\ ґрунтова основ\ ))~.