Perhaps you should try some spelling variations:
основеа\" » основе\" (Expand Search), основіеа\" (Expand Search), основееа\" (Expand Search)
основеі\" » основі\" (Expand Search), основе\" (Expand Search), основіеі\" (Expand Search), основееі\" (Expand Search)
основіні\" » основі\" (Expand Search), основііні\" (Expand Search), основеіні\" (Expand Search)
основні\" » основі\" (Expand Search), основіні\" (Expand Search), основені\" (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 (основеа\\" OR (основеі\\" OR (основіні\\" OR основні\\")))) OR (\\"ґрунтова основ\\"))\"".
• Removing quotes may allow a broader search: (( ґрунтова (основеа OR (основеі OR (основіні OR основні )))) OR ( ґрунтова основ )).