...ok i have found this.. which seems to work... but how do i limit to just blogs and newsPage items...

function results($data, $form){
      
      
      
      $dosResults = $form->getResults();

       $dosNewResults = new DataObjectSet();
       foreach ($dosResults as $doResult)
       {
          if ( $doResult->URLSegment == "contact-us")
          {
             //filtered
          }
          else
          {
             //keep
             $dosNewResults->push($doResult);
          }
       }
      
      
$data = array(
'Results' => $dosNewResults,
'Query' => $form->getSearchQuery(),
'Title' => 'Search Results'
);
      
      
      
$this->Query = $form->getSearchQuery();

return $this->customise($data)->renderWith(array('Page_results', 'Page'));
}