Perhaps you should try some spelling variations:
основеіа\\" » основі\\" (Expand Search), основе\\" (Expand Search), основні\\" (Expand Search), основіеіа\\" (Expand Search), основееіа\\" (Expand Search)
основеіе\" » основі\" (Expand Search), основе\" (Expand Search), основні\" (Expand Search), основіеіе\" (Expand Search), основееіе\" (Expand Search)
основііе\\" » основі\\" (Expand Search), основе\\" (Expand Search), основні\\" (Expand Search), основіііе\\" (Expand Search), основеііе\\" (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 (основеіа\\\" OR (основеіе\\" OR основііе\\\"))) OR (\\\"ґрунтова основ\\\"))~\\"\"".
• Removing quotes may allow a broader search: ((\ ґрунтова (основеіа\ OR (основеіе OR основііе\ ))) OR (\ ґрунтова основ\ ))~.