I didn't get any written warranty. They said there was no such written warranty

. I know it was my fault to believe a dealer. But is there anything that I can do?
ps: there is an item on the contract. It says:
If you do not get a written warranty, and the seller does not enter into a service contract within 90 days from the date of this contract, the seller makes no warranties, express or implied, on the vehicle, and there will be no implied warranties of merchantability or of fitness for a particular purpose.
Thank you for your reply.