AFC made the decision Wednesday, saying all the remaining games of Vietnam and other teams in group G will take place between June 3-15 at a centralized venue either in UAE or Thailand.
The confederation assured that teams will be given at least 48-hour break between matches and it will announce the host nation in early March.
According to the previous schedule, Vietnam would take on Malaysia on March 30, before playing against Indonesia and the UAE in June.
The Golden Dragons are atop the group with 11 points after three wins and two draws. Following closely behind are Malaysia (nine points), Thailand (eight) and UAE (six), which have played a game less.
Indonesia are already out after losing all five games.
Vietnam need a minimum of seven points from the remaining three matches to advance to the final round of the qualifiers.
According to the tournament format, the best team in group G and the five best second place teams of each groups will go on to the third qualifying round, and at the same time secure their slots in the 2023 AFC Asian Cup in China. Vietnam have never reached the third qualifying round of the World Cup.
The AFC also requires the second round of Asian qualifiers to be completed by June 2021, with the third and final round to be completed before March 2022.