reg_string = (w|d|b|s)+h(w|d|b|s)+(w|d|b|s)+anto(w|d|b|s)+
self.queryset.filter(name__iregex=r"%s"%(reg_string,))

print (re.search(r'(w|d|b|s)+h(w|d|b|s)+(w|d|b|s)+anto(w|d|b|s)+', 'The Canton', re.I).group()