Emanuele Giaccherini's second goal in as many games extended Hellas Verona's winless streak as they went down 2-0 to Bologna.Andrea Mandorlini's side are without a win this season and are joint bottom of Serie A after conceding two early goals.Giaccherini, the former Sunderland man, opened the scoring in the fifth minute after Adam Masina broke down the left and found him with a pinpoint cross.The lead was doubled 10 minutes later as Masina again found room to fire in a cross, before Godfred Donsah found the corner with a neat finish.ends