Нужна ли виза во Вьетнаме?

2 года назад отдыхал 2 недели во Вьетнаме. Никакие визы не нужны были для Россиян. Думаю с транзитом проблем не будет..

Вот что говорит Тиматик про визу во Вьетнам для россиян:

Passport required.
- Passports and other documents accepted for entry must be
  valid for a minimum of 30 days beyond the period of intended
  stay.
- Passports and other documents accepted for entry issued to
  nationals of Russian Fed. must be valid for a minimum of 6
  months from the arrival date, when not holding a visa.
- When holding a visa for entry into Viet Nam, passports must
  be valid at least 1 month after the expiry date of the visa.
 
Visa required, except for Nationals of Russian Fed. with a
normal passport for a maximum stay of 15 days.
Visa required, except for Nationals of Russian Fed. arriving
at Phu Quoc (PQC) for a maximum stay of 30 days.

Visa required, except for Nationals of Russian Fed. arriving
at Hanoi (HAN) or Ho Chi Minh City (SGN) with onward tickets
for a connecting flight, on the same day, to Phu Quoc (PQC).

They are required to remain in the transit area of Hanoi (HAN)
or Ho Chi Minh City (SGN) and clear immigration at Phu Quoc
(PQC) where they will be granted a maximum stay of 30 days.

Visa required, except for Passengers with a Certificate of
Visa Exemption issued by Viet Nam for a maximum stay of 90
days. 
Visa required, except for Passengers with an APEC Business
Travel Card For details, click here valid for travel to VNM.
Visa Issuance:
Visa required, except for Nationals of Russian Fed. with a
normal passport traveling as tourists can obtain a single
entry visa on arrival for a max. stay of 15 days, when
returning from a 3rd country within 30 days from their last
departure date from Viet Nam.
Visa required, except for Holders of a pre-approval letter
issued only in Ha Noi, Viet Nam by the Vietnamese Immigration
(Ministry of Public Security) or the Consular Department
(Ministry of Foreign Affairs), can obtain a visa on arrival
for a max. stay of 1 or 3 months at Hanoi (HAN), Ho Chi Minh
City (SGN), Da Nang (DAD) or Nha Trang (CXR). Fee: USD 45.-
for a single-entry 1 or 3 months visa; USD 65.- for a
multiple-entry 1 month visa; or USD 95.- for a multiple-entry
3 months visa.

Minors:
- Minors arriving in or departing from Viet Nam who are 13
  years old or younger must hold proof of being met by parent
  or guardian at the airport of arrival.

Additional Information:
- Visitors are required to hold proof of sufficient funds to
  cover their stay and documents required for their next
  destination.
- Extension of stay possible for an additional 90 days, for
  holders of a  Certificate of Visa Exemption .

Warning:
- Passengers with an APEC Business Travel Card must travel
  with a passport. The passport number and nationality must
  match those stated on the card.
- Nationals of Russian Fed. holding normal passports entering
  Viet Nam without a visa must have a gap of at least 30 days
  from their last departure date from Viet Nam.
- Visa exempt visitors not holding return/onward tickets could
be refused entry.

Друзья, всем спасибо за комментарии. Мне кажется, я поняла, что к чему.

Действительно, гражданам России для въезда во Вьетнам на срок не более 15 дней виза не нужна.
Visa required, except for Nationals of Russian Fed. with a
normal passport for a maximum stay of 15 days.

Однако есть очень важный нюанс:
Warning:
- Passengers with an APEC Business Travel Card must travel
  with a passport. The passport number and nationality must
  match those stated on the card.
- Nationals of Russian Fed. holding normal passports entering
  Viet Nam without a visa must have a gap of at least 30 days
  from their last departure date from Viet Nam.
- Visa exempt visitors not holding return/onward tickets could
be refused entry.

Выделенные цветом положения дословно означают следующее:
во-первых, у вас должен быть обязательно иметься либо обратный билет, либо билет в другую страну на дату в пределах 15 дней после въезда;
во-вторых, если вы планируете покинуть Вьетнам в течение 15 дней и вернуться обратно - по возвращении вам обязательно понадобится виза.

Так что будьте аккуратны!

вот ссылка на FAQ по визам во Вьетнам
forum.awd.ru/viewtopic.php?f=212&t=5667&sid=d62c55493fffaaf8ffd08c5293e3aaa0