Maybe try glow jigs (we favour glow-white) and/or slip on a bead before tying on your jig. The "helicopter" jigs also work fine for drawing some attention. Another thing you can try is pouring a very small amount of cream (liquid milk) down the hole to create some action. Some say it doesn't work - I do happen to know that it does
. Basically you need to create a presentation that will draw the fish to the hole given how murky the water is so some type of attractant is needed. Swedish Pimples (lures) also have been proven to work when jigging live bait doesn't work. Good luck!