create template to show product by attributes

Hi everyone I create one attribute call country with two terms. I add this attribute to my products with this term.

I obtain me term like this

echo '<ul>';
$terms = get_terms( 'pa_country', 'hide_empty=0' );
foreach ($terms as $term) :
    $term_link = get_term_link( $term->slug, 'pa_country' );
    echo '<li><a href="'.$term_link.'" title="'.$term->name.'">'.$term->name.'</a></li>';
endforeach;
echo '</ul>';

But when I click in my the link don’t show a template (reload home page), my link is like this
/?taxonomy=pa_country&term=usa

so inside the woocommerce plugin in my template I create a template
taxonomy-country.php I try to taxonomy-pa_country.php
but don’t work!

any idea??

https://wordpress.org/plugins/woocommerce/