Derived categories of surfaces isogenous to a higher product

Let S=(C×D)/GS=(C×D)/G be a surface isogenous to a higher product of unmixed type with pg=q=0pg=q=0, G=(Z/3)2G=(Z/3)2. We construct exceptional sequences of line bundles of maximal length on S. As a consequence we find new examples of quasiphantom categories.