Titles cart module (Qty, Price, Name)

-- url of the page with the problem -- : www.nexion-training.com/index.php/services/education#apply
-- HikaShop version -- : latest
-- Joomla version -- : latest
-- PHP version -- : ?
-- Browser(s) name and version -- : Firefox, Google, Safari latest
-- Error-message(debug-mod must be tuned on) -- : None

Dear Hikashop team,

I am trying to find the code to change the titles of the cart_module (see screencast.com/t/cOKWknGF ). I can see the code when I inspect the element in Firefox but I cannot find the file where I can change that code. Could you tell me where I can find it?