The thing is multi entry visa for Vietnam allows entries for 90 days.
I'm confused because prior to covid I previously obtained many.
This is prior to eVisa.
I have now checked my single entry eVisa I obtained Feb this year and it had the same 14 or 15 day "good for entry from (date) to until (date).
Thinking that means you have 2 weeks to enter .
I'm confused.
Prior to eVisa ...I obtained 4 visits to Vietnam every month for many years.