Hello, Farcela
All these “snippets” are generated by Woocommerce so it is better to contact them with such questions.
Also, if you have some PHP skills you may analyze by your own next file of WooCommerce -> plugins/woocommerce/includes/class-wc-structured-data.php
It contains all schema org elements for different cases. There you may also find actions and filters which could be used/modified from child-theme/functions.php
Best Regards,
8Themes Team