5 letter words:
ephah13,
hippo12,
pappi11,
poppa11,
4 letter words:
phoh12,
hoha10,
epha9,
heap9,
hope9,
opah9,
pape8,
pepo8,
pipa8,
pipe8,
poep8,
pope8,
ohia7,
3 letter words:
hah9,
heh9,
hoh9,
hap8,
hep8,
hip8,
hop8,
pah8,
peh8,
phi8,
pho8,
poh8,
app7,
pap7,
pep7,
pip7,
pop7,
ahi6,
hae6,
hao6,
hie6,
hoa6,
hoe6,
hoi6,
ape5,
apo5,
ope5,
pea5,
pia5,
pie5,
poa5,
poi5,
2 letter words:
ah5,
eh5,
ha5,
he5,
hi5,
ho5,
oh5,
op4,
pa4,
pe4,
pi4,
po4,
ae2,
ai2,
ea2,
io2,
oe2,
oi2,