Jeff,
Since you have only had these snakes for 2 days, they will certainly need a few more to "settle in" and become comfortable with their new home. Corns do, however, spend a great deal of time hiding, especially during daylight hours. Some of mine will now tend to "peek" out of their hides when I am in the room...especially if feeding day is near. Sometimes they will be roaming about...but they like to come out when it is getting dark. They will come out MORE often once they settle in, but not a whole lot. Try checking on them around dusk when there is still enough light to see them, but it is starting to dim.
Think very seriously about getting a second cage. I am assuming your snakes are now small...right or wrong? Do you know the sexes? For many many reasons, your snakes will be better off eventually if each has its own cage. For now, if you do keep them together, take them out one at a time and feed them in a separate container. If there are ANY signs of trouble (regurgitation, refusal of food, one pestering the other, etc.)
...then get cage #2 ASAP. Best to do so before any potential trouble, though. Good luck with your new snakes. Corns are great. Scroll down through the posts below and check out lots of Q & A already posted. Lots to learn. Duffy