gistfile1.php

<?php
// WP_Query arguments
$args = array (
		'tax_query' => array(
		array(
			'taxonomy' => 'category',
			'field'    => 'slug',
			'terms'    => array('tutoriais', 'destaque'),
		),
	),
);

);

// The Query
$query = new WP_Query( $args );

// The Loop
if ( $query->have_posts() ) {
	while ( $query->have_posts() ) {
		$query->the_post();
		// coloca o codigo do loop aqui
	}
} else {
	// no posts found
}

// Restore original Post Data
wp_reset_postdata();
?>