Is it possible to remove pages that should not be shown (defined by the Embargo/Expiry module) from the site search results? I tried the following, but I am still getting pages that should not be shown:

function results($data, $form)
{
	$results = $form->getResults();
	
	foreach ($results as $result)
	{
		if ($result->Embargo != NULL && $result->Embargo < strftime('now'))
		{
			$results->remove($result);
		}
		
		if ($result->Expiry != NULL && $result->Expiry >= strftime('now'))
		{
			$results->remove($result);
		}
	}

	$data = array(
		'Results' => $results,
		'Query' => $form->getSearchQuery(),
		'Title' => 'Search Results'
	);

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

No one knows how I can use extra fields in the site search? The Embargo and Expiry fields seem to be accessible, but they are returned empty.