The 19-year-olds from Melbourne's Bayside and four other foreign nationals died more than a week after falling ill in Vang Vieng, a popular tourist town.
After landing in Melbourne on Tuesday night, Ms Jones' father, Mark said his family would try to put their lives back together after the tragedy.
"We want to grieve. We miss our daughters desperately," he told reporters at Tullamarine airport.
However, he said more needed to be done to ensure those responsible for the contamination were held to account.
"I was happy to hear that there's been some movement over in Laos. I will continue to urge to continue our government to continue to pursue whoever," Mr Jones said.
"We cannot have our girls passing and this continuing to happen."
Laophattana News in Vientiane reports eight people have been detained over the deaths of an American man and two Danish women in Van Vieng, but there was no mention of the two Australians or a British woman who also died of suspected methanol poisoning.
The men detained were identified as hotel staff and management.
With AAP.
