8 letter words:
pirozhki26,
7 letter words:
rhizopi21,
4 letter words:
phiz18,
koph13,
zori13,
piki10,
pork10,
3 letter words:
zip14,
khi10,
kip9,
kop9,
hip8,
hop8,
phi8,
poh8,
irk7,
kir7,
koi7,
kor7,
rho6,
poi5,
pro5,
rip5,
2 letter words:
ki6,
hi5,
ho5,
oh5,
op4,
pi4,
oi2,
or2,