4 letter words:
help9,
holp9,
hoop9,
hope9,
pooh9,
helo7,
hole7,
loop6,
lope6,
pole6,
polo6,
pool6,
oleo4,
3 letter words:
heh9,
hep8,
hop8,
peh8,
poh8,
hoe6,
oho6,
ooh6,
lop5,
ope5,
pol5,
poo5,
loo3,
ole3,
2 letter words:
eh5,
he5,
ho5,
oh5,
op4,
pe4,
el2,
lo2,
oe2,