Perhaps you should try some spelling variations:
основеа » основе (Expand Search), основіеа (Expand Search), основееа (Expand Search)
основіеа » основі (Expand Search), основе (Expand Search), основіа (Expand Search), основеа (Expand Search), основііеа (Expand Search), основеіеа (Expand Search)
основіе » основі (Expand Search), основе (Expand Search), основііе (Expand Search), основеіе (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.

• If you are trying to use Boolean operators, they must be ALL CAPS: (( ґрунтова (основеа OR (основіеа OR (основіе OR основные )))) OR ( ґрунтова основ ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( ґрунтова (основеа OR (основіеа OR (основіе OR основные )))) OR ( ґрунтова основ ))~".
• Adding a wildcard symbol may retrieve word variants: (( ґрунтова (основеа OR (основіеа OR (основіе OR основные )))) OR ( ґрунтова основ ))*.