The tuition deduction reduces your taxable
income, which means it does not give you an additional
refund, it just reduces the amount of income you are taxed on by the IRS. It
may be that the amount of the tuition deduction received for this form did not
reduce your income enough to give you an extra refund amount.
Other factors such as
whether or not you qualified for the deduction or if your
deduction was limited could affect the credit as well. More
information about this credit can be found here: https://www.irs.gov/publications/p970/ch06.html#en_US_2016_publink100025391