Instead of Nam, the Viet folks call it Nem for their version:
Nem Chua (Vietnamese Cured Pork With Garlic and Chiles)
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The nem also tastes different or at least the ones I had. Lots of nems being sold around here and when I first discovered this my eyes lit up for access but I haven’t bought nem in more than a decade because it just doesn’t hit the spot like the nam.