Ok, simple peezy, Until you have your fish feeding in this area on the regular, I would Continue chumming this area with your bait. Course a simple chum is field/feed corn. My personal mix is a 25% blend of field/feed corn, 25% alphalpha pellets ( simple rabbit food ), 25% fish meal ( you can get it in your pet supplier, Walmart, Kamart Etc ) and a Mix of simple sweet corn ( canned corn ). once I do this a few times I hit the spot with strictly Feed/Field corn.
Now another simple cheap way to bait up an area, is to soak feed/field corn in a molasses/Alcohol base. When times are tough for me for wild water carp, I soak a couple 5 gal buckets of feed/field corn and then chum up the area.
Just keep at it, BUT please remember a shoal of carp in the low to mid teens will most likely eat a couple 5 gal buckets worth of feed. carp are gluttons, and there have been time I have baited up an area and added three 5 gal buckets to hold the fish and all of the feed and carp were gone. You have to remember that its not only carp, but other species in the area that will eat up your chum.
One thing I have noticed though, in my area, when the small and large mouth buffalo move in to feed the carp tend to move on. course thats when the bigger buffs seem to move in.
One last Idea/tip, is I would Pre bait your area, this can be done a day or so before you actually fish the area. I would recommend you do this if the area has some carp activity, this will help you in holding the fish and will get you some repeat fish. Also, when picking spots for carp, I would suggest looking for carpy areas, I have had my best luck with high teens on some what silty/rocky bottoms.
Hope this helps, and I would also like to suggest you check out the beginner section of the carp anglers group forum for even more detailed info and a more professional answer.