Perhaps you should try some spelling variations:
основііа\\" » основі\\" (Expand Search), основні\\" (Expand Search), основіііа\\" (Expand Search), основеііа\\" (Expand Search)
основеіеііа\" » основіеііа\" (Expand Search), основееііа\" (Expand Search), основніеііа\" (Expand Search), основіеіеііа\" (Expand Search), основееіеііа\" (Expand Search)
основеі\\" » основі\\" (Expand Search), основе\\" (Expand Search), основні\\" (Expand Search), основіеі\\" (Expand Search), основееі\\" (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 (основеіеііа\\" OR (основііа\\\" OR основеі\\\"))) OR (\\\"ґрунтова основ\\\"))\\"\"".
• Removing quotes may allow a broader search: ((\ ґрунтова (основеіеііа OR (основііа\ OR основеі\ ))) OR (\ ґрунтова основ\ )).