my camry2009 turn to the left if I remove my hand from the steerning wheel.

I believe you said you had the tires balanced and the wheels aligned. Did you also have the tires rotated? Assuming the alignment was done correctly, this will be due to a bad tire. A tire can develop an internal chord separation that cannot necessarily be seen from the outside. This can cause what is called a tire pull. A tire with this problem cannot be repaired but must be replaced, however, sometimes if placed in a different position on the car, the pull will not be as noticeable. This will be one of your front tires. Try swapping the tires on one side (front to back and back to front) and see if it helps.

Have a MECHANIC test drive your car to experience what you do, ride along with him so you can give input while he is driving. Then he will be able to make suggestions as to what the problem/fix is.

are the tires matched or worn badly?