buses from Venice Marcopolo Airport

I would like to get from Venice airport to Ariano del Polesine
(a small town south of Venice) on 25 April - my plane (if I go)
will get in late morning.

This timetable service was suggested to me:

http://ro.autobus.it/ro/asp/RicercaOrari.asp?User=SITA

It lists both the airport and Ariano del Polesine among the
destinations covered, but when I try to get from one to the
other it doesn't know how.

Can it be done?

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Jack Campin, 11 Third Street, Newtongrange, Midlothian EH22 4PU, Scotland
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