Woocommerce variable product stock qty message

Is there a way to change variable product default stock message?

My goal is to check how many items are in stock, if there is more than 20 items it should display “More than 20 available” and if it is under 20 items, it says exactly how much items are left (15 items left)

Is it doable?

https://wordpress.org/plugins/woocommerce/