4 letter words:
chow12,
whip12,
whop12,
wich12,
chip11,
chop11,
cowp11,
whio10,
hioi7,
3 letter words:
how9,
who9,
chi8,
cow8,
hic8,
hip8,
hoc8,
hop8,
ich8,
och8,
phi8,
pho8,
poh8,
pow8,
wop8,
cop7,
pic7,
hoi6,
iwi6,
poi5,
2 letter words:
ch7,
hi5,
ho5,
oh5,
ow5,
wo5,
op4,
pi4,
po4,
io2,
oi2,