20 year old artscience student, looking for accommodation in Bologna

My name is Gabrielle Johansson, I'm a Swedish-Belgian girl who's currently studying Artscience at the Univerity of Ghent, Belgium. For my erasmus in Bologna I'm looking for an accomodation with a maximum price of 500 Euros (preferably around 400). I hope to find an accomodation in the city centre that's nice and spatious. My own bathroom or kitchen would be nice but if the kitchen or bathroom are shared preferably with not too many people so we can keep it nice and clean (max 5 people). I'm not difficult when it comes to roommates as long as you'll always clean after using the bathroom or kitchen. If you smoke I don't care but not inside please.