5 letter words:
cabob11,
4 letter words:
bach11,
cobb10,
chao9,
abba8,
baba8,
3 letter words:
coz14,
azo12,
zoa12,
bah8,
hob8,
bob7,
cab7,
cob7,
aah6,
aha6,
hao6,
aba5,
abo5,
baa5,
boa5,
oba5,
oca5,
2 letter words:
za11,
ah5,
ha5,
ho5,
oh5,
ab4,
ba4,
bo4,
aa2,