Good afternoon all

First time poster, feel free to redirect if this is a less than optimal thread to ask...
I am trying to dig up award seats from VIE-TPA for the end of the month. Every resource I have seen that screenshots this search tool shows people that can find availability that does not route through Canada, but I cannot find anything that touches North America without routing through YYZ or YUL.
Combined with some "magic trick" that a random poster mentioned in a previous thread that revealed a ton of availability for his given search, is there some kind of setting I can toggle or need to change that will reveal availability on non AC birds? Thanks in advance.