Vivian and Khe Wei had to sweat for one hour and seven minutes to beat Putitta Suparajikul and Sapsiree Taerattanachai of Thailand in three sets.
The 2014 Commonwealth Games gold medalists took some time get into the mood and lost the first set 17-21 to the Thai pair.
"After the first set, we slowly got the rhythm and tactics right and were confident of winning the match," said Vivian.
Vivian (left) and Khe Wei in action against Thailand's Putitta and Sapsiree at the Bukit Jalil Putra Stadium today. - BERNAMApic
Malaysia's top women's doubles pair won the next two sets 21-17, 21-16. Vivian and Khe Wei will either meet Anggia Shitta Awanda/Mahadewi Istirani Ni Ketut (Indonesia) or Christinna Pedersen/Kamilla Rytter Juhl (Denmark).
Past meeting of the two pairs is in favour of Christinna/Kamilla who won when they first met at the Uber Cup tournament in India last year.
"We hope to perform our best tomorrow to show that Rosman's hardwork is not wasted," said Vivian.
Women's doubles coach Rosman Razak quit the Badminton Association of Malaysia (BAM) stable yesterday and will be replaced by Lim Pek Siah on May 1.
Meanwhile, Khe Wei who was surprised by Rosman's decision to terminate his contract with the BAM wished her former coach a successful career elsewhere.
READ: Rashid Sidek, Rosman Razak leave BAM
Vivian and Khe Wei are willing to work with new coach Lim Pek Siah.
"We know her as a player and had seen her play but we never tried Pek Siah the coach. So we hope that we can work well together," said Vivian.
