Perhaps you should try some spelling variations:
основеі\\" » основі\\" (Expand Search), основе\\" (Expand Search), основні\\" (Expand Search), основіеі\\" (Expand Search), основееі\\" (Expand Search)
основеіііа\\" » основіііа\\" (Expand Search), основеііа\\" (Expand Search), основніііа\\" (Expand Search), основіеіііа\\" (Expand Search), основееіііа\\" (Expand Search)
основііа\\" » основі\\" (Expand Search), основні\\" (Expand Search), основіііа\\" (Expand Search), основеііа\\" (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 (основеі\\\" OR (основііа\\\" OR основеіііа\\\"))) OR (\\\"ґрунтова основ\\\"))\\"\"".
• Removing quotes may allow a broader search: ((\ ґрунтова (основеі\ OR (основііа\ OR основеіііа\ ))) OR (\ ґрунтова основ\ )).