Single entry visa vrs multipe entry visa

Dear Ms Angela,

• Citizens of the United Kingdom won't need a visa if staying for fewer than 15 days.
• A gap of at least 30 days between two visa-free visits is required.
• In case of intending to stay for more than 15 days, you should apply for a visa.

Single entry means you can arrive and exit Vietnam once.

In this case, you can apply for single entry.

And each person need the visa for themselves (childern too)

Thanks
Scarlet Le (ms.)

Dear Chin , 

Thanks for your concern,

There is no gap to  re enter Vietnam after exit for Malaysian passport holder. 

Best Regards.

Stepfanno Tran (Mr. )