woocommerce translation

Hello, I would like to improve the polish translation of woocommerce in my store – I used poedit, but I can not find the right sentences. This means that I would like to change the “billing address” – “address płatności” to the “billing address” – “adres” without “billing” translation. The same applies to the “billing name” and “billing first name”. Could anyone help me?

The page I need help with: [log in to see the link]