Exclude page / category from search on WordPress frontend

exclude-categories-search.php

<?php
/**
 * Exlcude categories ids: 2, 3 and 5
 **/
function tp_SearchFilter($query)
{
	if( !$query->is_admin && $query->is_search )
	{
		$query->set( 'category__not_in', array( 2, 3, 5 ) );
	}
	return $query;
}
add_filter('pre_get_posts','tp_SearchFilter');

exclude-page-search.php

<?php
/**
 * Exlcude page ids: 12, 23 and 65
 **/
function tp_SearchFilter($query)
{
	if( !$query->is_admin && $query->is_search )
	{
		$query->set( 'post__not_in', array( 12, 23, 65 ) );
	}
	return $query;
}
add_filter('pre_get_posts','tp_SearchFilter');