Be aware that In case your keep has presently been indexed by Google or another search engine, it'd acquire some time on your variations to look from the search results... you might have to be patient!   You specify the first URL because the search engine could have problem determining https://www.presta-addons-modules.com/en/seo/prestashop-seo-automatic-hreflang-tags-canonical-tags-on-all-pages.html