5 letter words:
cohab12,
bobac11,
cabob11,
4 letter words:
bach11,
cobb10,
chao9,
boab8,
boba8,
3 letter words:
ach8,
bah8,
boh8,
cha8,
hob8,
hoc8,
och8,
abb7,
bac7,
bob7,
cab7,
cob7,
hao6,
hoa6,
abo5,
boa5,
oba5,
oca5,
2 letter words:
ch7,
ah5,
ha5,
ho5,
oh5,
ab4,
ba4,
bo4,
ob4,