Perhaps you should try some spelling variations:
основііе\\" » основі\\" (Expand Search), основе\\" (Expand Search), основные\\" (Expand Search), основіііе\\" (Expand Search), основеііе\\" (Expand Search)
основііееіныееа\" » основіеіныееа\" (Expand Search), основееіныееа\" (Expand Search), основныееіныееа\" (Expand Search), основіііееіныееа\" (Expand Search), основеііееіныееа\" (Expand Search)
основні\\" » основі\\" (Expand Search), основіні\\" (Expand Search), основені\\" (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 основні\\\") OR основііееіныееа\\")) OR (\\\"ґрунтова основ\\\"))\\"\"".
• Removing quotes may allow a broader search: ((\ ґрунтова ((основііе\ OR основні\ ) OR основііееіныееа )) OR (\ ґрунтова основ\ )).