Perhaps you should try some spelling variations:
основіе\\" » основі\\" (Expand Search), основе\\" (Expand Search), основные\\" (Expand Search), основііе\\" (Expand Search), основеіе\\" (Expand Search)
основіеееіііные\" » основіееіііные\" (Expand Search), основеееіііные\" (Expand Search), основныеееіііные\" (Expand Search), основііеееіііные\" (Expand Search), основеіеееіііные\" (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 ((основіе\\\" OR основні\\\") OR основіеееіііные\\")) OR (\\\"ґрунтова основ\\\"))\\"\"".
• Removing quotes may allow a broader search: ((\ ґрунтова ((основіе\ OR основні\ ) OR основіеееіііные )) OR (\ ґрунтова основ\ )).