$(".delivery-title").text(function () {
    return $(this).text().replace("Pickup", "hello everyone");
});

$(".col-12 ul").text(function () {
    return $(this).text().replace("Pickup", "Domestic or pickup ");
});


$(".col-12 ul").text(function () {
    return $(this).text().replace("Shipping", "International Shipping");
});

change script