Perhaps you should try some spelling variations:
основеіе\" » основі\" (Expand Search), основе\" (Expand Search), основні\" (Expand Search), основіеіе\" (Expand Search), основееіе\" (Expand Search)
основеіеные\" » основіные\" (Expand Search), основеные\" (Expand Search), основніные\" (Expand Search), основіеіеные\" (Expand Search), основееіеные\" (Expand Search)
основные\\" » основе\\" (Expand Search), основні\\" (Expand Search), основіные\\" (Expand Search), основеные\\" (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 (основеіе\\" OR (основные\\\" OR основеіеные\\"))) OR (\\\"ґрунтова основ\\\"))~\\"\"".
• Removing quotes may allow a broader search: ((\ ґрунтова (основеіе OR (основные\ OR основеіеные ))) OR (\ ґрунтова основ\ ))~.