Japt -f
, 66 5 bytes
Vá døUøVáUl
-f flag to output the elements of first input
that return a truthy value when passed through
Vá
ø - alltrue permutationsif ofword 2ndcontains inputany of:
Vá d - permutations -of returnalphabet true
if one
Ul - øUof same length -of containsword inputhence beingequal checked