Thank you Mrunmayi, it has been a pleasure
As far as the address, the name of the street that appears on airbnb is correct and the area (sestriere) that is mentioned on the description, as well.
The problem with Venice is that in the same city ,there are more than 1 street with the same name ;
what is important is the area ( sestriere)
As you have learned, the Venetian address is made from the name of the area following from a number that goes from 1 to some thousands This method works for venetian people, not for the rest of the world.
The other problem is that airbnb doesn't allow you to change the address once you have set it.
Since now it hasn't been a problem because I always go to receive the hosts, but I learned the lesson and from now on I will give the Venetian address to the hosts, one week before their arrival.