You can find a list of all CV's here
Nokia Product Code Listing for Care Suite Download - (Nokia 630 Added) - GSM-Forum
Although I should point out...it's likely that there ISN'T a specifically Portuguese CV for the phone. Microsoft since around 2009 started to ignore and diminish their presence in the country, fired a lot of people and moved a lot of stuff to Brasil. Since then, all their products are shoved down our throats using the Brazilian version with some attempts at disguising it (W8, WP7, WP8 etc).
On top of that, unlocked phones sold here are imported from other European countries so normally they have other CV's in them.
You do have on that list the Variants of the Portuguese carriers but I would STRONGLY advise you against any of them - specially TMN and Optimus - because Portuguese carriers don't give a sh*t about Windows Phone and are just terrible terrible terrible at approving updates.
I don't know why you wish the Portuguese CV but honestly, there's nothing to be gained by having a phone with it.