5 letter words:
bacha12,
batch12,
abaca9,
4 letter words:
bach11,
baht9,
bath9,
bhat9,
chat9,
tach9,
abac8,
caba8,
taha7,
acta6,
3 letter words:
ach8,
bah8,
cha8,
bac7,
cab7,
aah6,
aha6,
hat6,
aba5,
act5,
baa5,
bat5,
caa5,
cat5,
tab5,
2 letter words:
ch7,
ah5,
ha5,
ab4,
ba4,
aa2,
at2,
ta2,