Solutions :

3-letter words (1 point): 31

AIL; AIS; ASH; EHS; ELS; FEH; FIE; FIL; HIE; HIS; HOE; HOI; ION; IOS; ISH; ISO; LEI; LIS; LOU; NOS; OHS; OIL; OLE; ONS; SAI; SHE; SIF; SON; ULE; ZOA; ZOS.

4-letter words (1 point): 29

AILS; ELHI; FEHS; FILE; FILO; FILS; FISH; HELO; HILI; HISN; HOLE; HOLS; ILIA; IONS; ISLE; LIAS; LIFE; LION; NOIL; NOSH; OHIA; OILS; OLIO; SAIL; SHOE; SILE; SILO; SLOE; SOIL.

5-letter words (2 points): 10

AISLE; HELIO; LIONS; LOUIS; NOILS; OHIAS; OLIOS; SHEOL; SHIAI; SHIEL.

6-letter word (3 points): 1

HELIOS.

7-letter word (7 points): 1

ELISION.