Don't know what you used tas a snake, but if you got beyond the trap, go there again and use more snake. Or go in through your sink drain by taking the stopper out of the basin and wind your snake through at that point.
Once your through the trap it will go easier and while your doing that put some water in the bath tub so you can see it. Keep winding the snake in and when the water leaves the tub means your drain is open.
Now turn the hot water on and wind the snake back. Now you have done a pretty good job.