Change WooCommerce shortcode tag name

functions.php

<?php
/**
 * Change WooCommerce shortcode tag name.
 *
 * SEE EXISTING TAGS BELOW:
 *
 * product
 * product_page
 * product_category
 * product_categories
 * add_to_cart
 * add_to_cart_url
 * products
 * recent_products
 * sale_products
 * best_selling_products
 * top_rated_products
 * featured_products
 * product_attribute
 * related_products
 * shop_messages
 * woocommerce_order_tracking
 * woocommerce_cart
 * woocommerce_checkout
 * woocommerce_my_account
 *
 * @link    http://docs.woothemes.com/document/woocommerce-shortcodes/
 * @see     /wp-content/plugins/woocommerce/includes/class-wc-shortcodes.php
 *
 * @param string    Original shortcode tag name
 *
 * @return    string    New shortcode tag name
 */
function translate_woocommerce_shortcode_tag_name( $shortcode ) {
    if ( $shortcode == 'recent_products' ) {
        return 'produtos_recentes';
    } else if ( $shortcode == 'sale_products' ) {
        return 'produtos_em_oferta';
    }

    return $shortcode;
}

$tags = array(
    'recent_products',
    'sale_products',
);

foreach ( $tags as $tag ) {
    add_filter( $tag . '_shortcode_tag', 'translate_woocommerce_shortcode_tag_name' );
}