Why is it that you want a larger nose bridge?
I don't think there is anything you can do really, short of plastic surgery. I have heard that some women's noses swell during pregnancy, but go back to normal after they give birth.
If it is strictly a cosmetic thing, perhaps some creative shading with makeup would make your nose appear larger. Or wearing smaller glasses/sunglasses, if you do wear them.
Also, you should bear in mind that it is really proportion that matters, not size. It is more important that your nose fit your face than your nose fit you "ideal" of what it is supposed to look like.