When using TurboTax and a 529 account is in play, it is *IMPERATIVE* that you work through the Education section the way it is designed and intended to be used. If you do not, then changes are very high (like 99.9%) that you will not be asked for those expenses that can be claimed on a 529 account.
So work through the education section again from the beginning of that section, and work it the way it is designed and intended to be used. Then you will be asked for all the education expenses you are qualified to claim.