Query post by text field

Hello

I have add a field in post dcvbpl_banhanh and add value B? th?y s?n

and have Query post by text field:

<?php
$args = array(
	'numberposts'	=> 10,
	'post_type' => 'post',
	'meta_key'		=> 'dcvbpl_banhanh',
	'meta_value'	=> 'B? th?y s?n',
);
$the_query = new WP_Query( $args );
?>
<?php if( $the_query->have_posts() ): ?>
<div class="wapsdblist">
	<h3><?php the_field('dcvbpl_banhanh'); ?></h3>
	<ul>
<?php while( $the_query->have_posts() ) : $the_query->the_post(); ?>
		<li><i class="fa fa-check-circle-o"></i> <a href="<?php the_permalink() ?>" title="<?php the_title(); ?>"><?php the_title(); ?></a></li>
<?php endwhile; ?>
	</ul>
</div>
<?php endif; ?>
<?php wp_reset_query();	 // Restore global post data stomped by the_post(). ?>

But my code is not show list post true value.

Give me any idea. any support for help me.
Thanks

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