See: https://ttlc.intuit.com/questions/3396266-529-plans-and-tutors-is-the-cost-of-college-tutors-an-elig...
A search on the word tutor in Pub 970 indicates that it is an allowed expense only for Coverdell Education Savings Accounts.
However, a 529 plan can pay for any accommodations for special need students.
