Theresia - Marina
Josepha - Magdalena
Katharina - Weronika Michin
Georg - Marianna Michin
Fratiška - Maria? (looks like M. Ana) Mychin
Marina and Magdalena are probably the same person named Marie Magdalena. It´s even possible that someone could write her name as Marianna. But that Veronika is weird. Either he had three wives or it´s a mistake. You´ll have to check death and wedding records (and possible wedding records of these children as well) to be sure.