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QUICK ANSWER
"Not so much" is a phrase which is often translated as "no tanto", and "not as much" is a phrase which is also often translated as "no tanto". Learn more about the difference between "not so much" and "not as much" below.
not so much()
A phrase is a group of words commonly used together (e.g., once upon a time).
2. (not even)
a. ni siquiera
Not so much as a phone call was made to the families.Ni siquiera se hizo una llamada de teléfono a las familias.
b. ni tan siquiera
I never had a pet as a child, not so much as a hamster.Nunca tuve una mascota de niño, ni tan siquiera un hámster.
not as much()
