Perhaps you should try some spelling variations:
основіа\" » основі\" (Expand Search), основііа\" (Expand Search), основеіа\" (Expand Search)
основные\" » основе\" (Expand Search), основні\" (Expand Search), основіные\" (Expand Search), основеные\" (Expand Search)
основеі\" » основі\" (Expand Search), основе\" (Expand Search), основні\" (Expand Search), основіеі\" (Expand Search), основееі\" (Expand Search)
основеііе\" » основііе\" (Expand Search), основеіе\" (Expand Search), основнііе\" (Expand Search), основіеііе\" (Expand Search), основееііе\" (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 (основіа\\" OR ((основные\\" OR основеі\\") OR основеііе\\"))) OR (\\"ґрунтова основ\\"))~\"".
• Removing quotes may allow a broader search: (( ґрунтова (основіа OR ((основные OR основеі ) OR основеііе ))) OR ( ґрунтова основ ))~.