How can I publish our products to over the world???

Dear friends,
I'm Quynh Anh and I work as Cartographic Publishing House representative from Viet Nam. I want to find out a way exporting my products but it seems very difficul. I inneed need some advices, some experiences of you. How I can approach to agencies, bookstores, libraries... I know that foreign market is very rare Maps, Atlas of Viet Nam and the demand is rising. Please, sharing your expericens to me. Thanks you so much!