For the mostpart, it looks like those are only in the gel coat, although the second one has a little bit of invasion into the actual fiber.

There are a few ways you could try to fix it. The easiest would be to mix up some epoxy and apply a little at a time and let it harden and try to mimic the shape. Or, if you had a non injured hood to take a mold off of, you could take a small, corner mold off of the good hood, and use that mold to hold the shape for the chipped hood while you put epoxy in on the chipped hood. Either way it's not really going to look wonderful, but it might look better than it does right now.