5 letter words:
cahow13,
chara10,
orach10,
roach10,
aroha8,
4 letter words:
czar15,
chaw12,
chow12,
whoa10,
arch9,
chao9,
char9,
craw9,
crow9,
rach9,
roch9,
waac9,
arow7,
haar7,
haro7,
hoar7,
hora7,
arco6,
orca6,
raca6,
3 letter words:
zho15,
caz14,
coz14,
azo12,
zoa12,
haw9,
how9,
wha9,
who9,
ach8,
caw8,
cha8,
cow8,
hoc8,
och8,
aah6,
aha6,
awa6,
hao6,
hoa6,
rah6,
raw6,
rho6,
row6,
war6,
arc5,
caa5,
car5,
cor5,
oca5,
orc5,
roc5,
oar3,
ora3,
2 letter words:
za11,
zo11,
ch7,
ah5,
aw5,
ha5,
ho5,
oh5,
ow5,
wo5,
aa2,
ar2,
or2,