5 letter words:
coifs10,
4 letter words:
fish10,
chis9,
coif9,
cosh9,
fico9,
fisc9,
foci9,
ichs9,
3 letter words:
foh9,
shh9,
chi8,
hic8,
ich8,
his6,
hos6,
ifs6,
ohs6,
cis5,
cos5,
sic5,
2 letter words:
hi5,
ho5,
if5,
of5,
oh5,
sh5,
is2,
oi2,
os2,
si2,
so2,