themes-wordpress/assembler/patterns/hidden-no-search-results.php

<?php
/**
 * Title: 404
 * Slug: assembler/hidden-no-search-results
 * Inserter: no
 */
declare( strict_types = 1 );
?>

<!-- wp:paragraph {"align":"center"} -->
    <p class="has-text-align-center"><?php echo esc_html_x( 'No search results.', 'Text explaining that there are no results returned from a search', 'assembler' ); ?>.</p>
<!-- /wp:paragraph -->