4 letter words:
dojo12,
judo12,
bufo9,
food8,
foud8,
budo7,
doob7,
3 letter words:
job12,
jud11,
fob8,
fub8,
dof7,
fud7,
bod6,
bud6,
dob6,
dub6,
fou6,
oof6,
ufo6,
boo5,
obo5,
doo4,
duo4,
oud4,
udo4,
2 letter words:
jo9,
of5,
bo4,
ob4,
do3,
od3,
oo2,
ou2,