Corn snake genes are 'simple recessive'. They must have *two* copies of a gene to express the trait. Remember that old (and not accurate, but it works here) lesson in biology about the inheritance of human eye color? Brown is the "normal" or "wild type" and is dominant to blue. If someone with two brown genes has children with someone with two blue genes, all the children will have brown eyes but genetically have one brown gene and one blue gene. Thus, those children are "het" for blue eyes.
So. Your hypo lavender has two genes for hypo and two genes for lavender. Your snow has two genes for amel and two genes for anery. You'll note that NONE of these match up. Each parent provides one gene copy, so all the offspring will have only *one* hypo gene, *one* lavender gene, *one* amel gene, and *one* anery gene. They will all look like normals.
However, if you breed the offspring together...
normal het hypo lavender amel anery x normal het hypo lavender amel anery....
You can get in that clutch hypos, lavenders, amels, aneries, hypo lavenders, hypo amels (unable to visually tell from plain amel), ghosts, opals (amel lavender), anery lavenders, snows, hypo opals (unable to visually tell from opal), ghost lavenders, hypo snows (unable to visually tell from snow), snowpals, and hypo snowpals.
Mind, I listed that in a general order of how likely each offspring is to get as the odds of you getting a particular combo decrease as more genes get added in.