I have managed from another post to make larger product name but not on 2 rows
code
<h4><a href="{$product.url}" title="{$product.name}" itemprop="name" class="product_name">{$product.name|truncate:60:'...'}</a></h4>
truncate:30 change this in product.tpl
I have solve it after many new codes. You just need to change in script on order-confirmation.tpl id_order to id_cart and it works like a charm. Both numbers are unique lol