A quick Google search for 'Vietnamese multi-color pepper" turned up a few vendors. Just my opinion but if you go the vendor route, I'd avoid Reimers.

The pepper you're looking for looks a lot like a Twilight. Look it up and email me if you think they're the same, I'll forward some seeds.

Bill

Thanks Bill for your fast reply. The peppers are very much alike, but the Vietnamese has purple stem and under neath the leaves. Peppers are one of my favorite hobbies and thank you for the offer. I would want to put you to the trouble since they are not the same. Thanks.

Unlike the Twilight, another variety, the Chinese 5 Color matches the purple color on the stem and leaves but the pods appear to be larger.

Look it up and if you think it's a match, I have those seeds too.

Bill

Hi Bill, I just emailed you. Thanks.

Bill, is that pepper you are talking about the same as the "5 Color Marble"? I am growing a couple of those this year for the first time.
Bruce