I would love to be able to print Udon Thani city map but I can only get it to print page one which is Decor's choice advertisement

If you're printing it from a Firefox browser click the little magnification glass icon so that the map fits on your screen, click print preview, page setup, select landscape, close and then choose scale 'shrink to fit'. You can then print the whole map.
Or right click and save the image and print it out with your computer software.