Where do you find these things?
Sorry for replying so late, but I just found them on YouTube. I guess I used a combination of YouTube recommendations, Wikipedia, and aggressive searches for something from Angola, Goa, and Daman that would resemble folk music as much as possible but still be in Portuguese.
Wikipedia's page on "Music of Portugal" mentions Amália Rodrigues, Dazkarieh, and Tony Carreira as well as folk music from various parts of Portugal, so that's how I found their songs. It also mentions Cristina Branco and Fausto, but I think I might have just found them through YouTube instead. I was introduced to "Mas Que Nada" when I was in choir class in sixth grade and the seventh-graders'(?) choir performed that at one of our concerts, I first heard "Samba agoniza mas não morre" on Encarta, and I looked for and found a song by Sara Tavares only because you posted "Bom Feeling" in one of the FSCs a few years ago.
Anyway, I'm just posting two more songs, one more by Chiquita ("Bota Acima, Bota Abaixo") and another by Fausto again:https://www.youtube.com/watch?v=KJ2WlDDZu20