As I heard Allah said a muslim can get marry with a christian or iahudi because Quran didn't reached to these tribe but their religion were made by Allah's rasuls,is it true?

You will find that some Imam's teach one thing and some another.

I know of several sincere Muslim's who have married a Christian but I also know of some others who will not do so.

As the Quran does not specifically prohibit or accept it, you are best to get advice from a local Imam - or from friends and family that practice their faith as you do.