use '?' for JOKER (blank)

From letters S, A, N, D, W, I, C, H  I made following words

8 letter words

sandwich[17]

6 letter words

chains[11], chinas[11], danish[10], sandhi[10], diwans[10], canids[9], nicads[9]

5 letter words

winch[13], chaws[13], schwa[13], whids[12], chads[11], wisha[11], shawn[11], whins[11], chain[10], china[10], chais[10], chias[10], chins[10], dashi[9], hands[9], hinds[9], diwan[9], wadis[9], dawns[9], wands[9], winds[9], canid[8], cnida[8], nicad[8], acids[8], asdic[8], cadis[8], caids[8], swain[8], wains[8], cains[7]

4 letter words

chaw[12], wich[12], whid[11], chad[10], chid[10], hwan[10], whin[10], haws[10], shaw[10], shwa[10], wash[10], wish[10], chai[9], chia[9], chin[9], inch[9], cash[9], chis[9], ichs[9], caws[9], hand[8], hind[8], dahs[8], dash[8], shad[8], dish[8], sidh[8], wadi[8], dawn[8], wand[8], wind[8], daws[8], wads[8], acid[7], cadi[7], caid[7], cads[7], scad[7], disc[7], ahis[7], hins[7], hisn[7], shin[7], sinh[7], wain[7], awns[7], sawn[7], snaw[7], swan[7], wans[7], wins[7], cain[6], asci[6], cans[6], scan[6], aids[5], dais[5], sadi[5], said[5], ands[5], dans[5], sand[5], dins[5], ains[4], anis[4], sain[4]

3 letter words

haw[9], wha[9], chi[8], hic[8], ich[8], caw[8], dah[7], had[7], hid[7], daw[7], wad[7], cad[6], ahi[6], nah[6], hin[6], ahs[6], ash[6], has[6], sha[6], his[6], awn[6], naw[6], wan[6], win[6], saw[6], was[6], wis[6], can[5], sac[5], cis[5], sic[5], aid[4], and[4], dan[4], din[4], ads[4], sad[4], dis[4], ids[4], ain[3], ani[3], ais[3], ins[3], sin[3]

2 letter words

ah[5], ha[5], hi[5], sh[5], aw[5], ad[3], id[3], ai[2], an[2], na[2], in[2], as[2], is[2], si[2]