Yes.
The dialects of Vietnamese are similar to those of English.
But the dialects of Vietnamese have a difference from the dialects of English in that they differ greatly between them.
Vietnamese seems to have a de facto standard dialect, but it is only used in teaching. It is closer to Vietnamese orthography and does not let any 2 Vietnamese letters have the same pronunciation (except “i” and “y”, “c” and “k” and “q", “g” and “gh”, “ng" and “ngh").
I am a Central Vietnamese born and raised in the South. So I speak Southern dialect.
When talking to each other, if something is difficult to understand, I will tell the person (my friend) to slow down or pronounce the word more correctly ( speak the standard dialect ) . Me and everyone around me can speak standard dialect, but can't use it to talk fast, so we use local dialect to talk fast .
As a child, I had a few neighbors who spoke northern dialects. I didn't understand what they were saying at the time. But now I can easily understand. Maybe I've gotten used to it.
To understand each other when they spoke a different dialect, we listened to them pronounce it, then guess ed the correct meaning of the statement, which took less than a second. What an amazing skill.
Summary: We asked them to pronounce the sentences more accurately or guess the meaning of the sentences.
The strange thing is that there isn't any place in Vietnam where the standard dialect is spoken :)))