Perhaps you should try some spelling variations:
основііе\\" » основі\\" (Expand Search), основе\\" (Expand Search), основні\\" (Expand Search), основіііе\\" (Expand Search), основеііе\\" (Expand Search)
основііеі\" » основіі\" (Expand Search), основеі\" (Expand Search), основніі\" (Expand Search), основіііеі\" (Expand Search), основеііеі\" (Expand Search)
основныеі\\" » основные\\" (Expand Search), основні\\" (Expand Search), основіныеі\\" (Expand Search), основеныеі\\" (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 (основііеі\\" OR основныеі\\\"))) OR (\\\"ґрунтова основ\\\"))\\"\"".
• Removing quotes may allow a broader search: ((\ ґрунтова (основііе\ OR (основііеі OR основныеі\ ))) OR (\ ґрунтова основ\ )).