Solutions :

3-letter words (1 point): 51

AAH; AAL; AAS; AHA; AHS; AIN; AIR; AIS; ALS; ANA; ANI; ANT; ARK; ASH; HAN; HAS; HAT; HUN; HUT; INK; IRK; KAT; LAH; LAS; NAH; NAN; NAS; NAT; NIS; NTH; NUT; RAH; RAI; RAN; RAS; RAT; RIA; RIN; SAI; SAL; SAN; SAR; SHA; SIN; SIR; TAK; TAN; TAR; TUN; UNS; UTA.

4-letter words (1 point): 74

AAHS; AALS; AIRN; ANAL; ANAN; ANAS; ANIS; ANTA; ARAK; ARIA; ARIS; ARNA; ASAR; HAAR; HAIN; HAIR; HANK; HANT; HARK; HARN; HUNS; HUNT; KANA; KANT; KARA; KARN; KNAR; KRIS; LAHS; LANA; LANK; LANT; LASH; NAAN; NANA; NANS; NARK; NISI; RAHS; RAIN; RAIS; RANA; RANI; RANK; RANT; RATH; RATU; RIAS; RINK; SAIN; SAIR; SALS; SANK; SANS; SANT; SARI; SARK; SASH; SHAN; SHAT; SHUN; SHUT; SINH; SINK; TAHA; TANA; TANH; TANK; TARA; TARN; THAN; THAR; TUNA; TUNS.

5-letter words (2 points): 46

ANTAR; ARIAS; ARNAS; ASANA; HAINT; KAHAL; KANAS; KARAS; KRAAL; LAARI; LAHAR; LANAI; LANAS; NAANS; NAHAL; NAIRA; NANAS; NARAS; NARIS; NASAL; QANAT; RANAS; RANIS; RATHA; RATHS; RIANT; SAINT; SARAN; SARIN; SASIN; SHANK; SHARK; SHARN; SHUNT; SINHS; SLANK; SLANT; TAHAS; TANAS; TANHS; TARAS; THANA; THANK; THANS; TUNAS; UNHAT.

6-letter words (3 points): 16

ANTARA; KAHALS; KAHUNA; KANTHA; KRAALS; LAARIS; LANAIS; NAHALS; NASALS; RAISIN; RATHAS; SHAIRN; SHARIA; TARNAL; THANAS; UNHAIR.

7-letter words (7 points): 6

ANTARAS; HARIANA; KAHUNAS; KANTHAS; LANTANA; SHARIAS.

8-letter words (11 points): 3

HARIANAS; LANTANAS; NUTARIAN.