Perhaps you should try some spelling variations:
основіе\" » основі\" (Expand Search), основе\" (Expand Search), основные\" (Expand Search), основііе\" (Expand Search), основеіе\" (Expand Search)
основіеіа\" » основііа\" (Expand Search), основеіа\" (Expand Search), основныеіа\" (Expand Search), основііеіа\" (Expand Search), основеіеіа\" (Expand Search)
основіеіа\\" » основііа\\" (Expand Search), основеіа\\" (Expand Search), основныеіа\\" (Expand Search), основііеіа\\" (Expand Search), основеіеіа\\" (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 основіеіа\\") OR основіеіа\\\")) OR (\\\"ґрунтова основ\\\"))*\\"\"".
• Removing quotes may allow a broader search: ((\ ґрунтова ((основіе OR основіеіа ) OR основіеіа\ )) OR (\ ґрунтова основ\ ))*.