Milonga Brava – Milonga Criolla – Original sheet music?

Dear readers, Not so much a story as a plea for help finding some sheet music for these two milongas:

MILONGA BRAVA

MILONGA CRIOLLA

both performed by FRANCISCO CANARO and ROBERTO MAIDA.

Any clues very much appreciated. Maybe they have alternative names and we are searching in the wrong place ?

Best wishes – Simon