@Ruby136 Very troubling situation, I hope you're able to locate her quickly.
The Airbnb search allows you to input a specific address, and it shows you the active listings in the vicinity. In the interest of hosts' privacy, it doesn't put all of them in their specific location on the map, so it's possible that a flat on Toorak Road will show up a block or two away from there on the map. I notice that most of the Airbnb's around South Yarra station are Entire Home properties, which means it's possible the hosts have had no direct contact with your daughter. But if you can track down a host with a listing at that address (which appears to be a non-residential storefront space), they might be willing to find a pretext to enter the property and check on things.
If you have access to the Uber account, it should also display the name and license number of the driver; that would make it pretty easy for the police to contact him or her to ask about the ride and obtain any surveillance materials available from it.
The phone numbers you've posted will probably be deleted by moderators because it's against the rules to put personal contact information here on a public forum. It's very unlikely that a specific host is going to see your posting here anyway, so you'll have to rely on more direct investigative means. If you haven't done so already, I'd suggest also calling +61 2 8520 3333 to reach Airbnb's Australian customer care line. They probably aren't authorized to give you info about the host, but they will cooperate with police in an emergency. (I only know this from another occasion when a forum contributor in Sydney had an emergency that required police to be sent to her home based on a troubling posting).