Search form for Region data??

I have a keyword field to search keywords for jobs which works fine but I cant get a list of regions to show ! what am I doing wrong?

<select id="search_region" name="search_region">
<?php foreach ( job_manager_job_listing_region() as $cat ) : ?>
<option value="<?php echo esc_attr( $cat->term_id ); ?>"><?php echo esc_html( $cat->name ); ?></option>
<?php endforeach; ?>
</select>

https://www.ads-software.com/plugins/wp-job-manager-locations/