The true sportsman is prepared for any contingency, therefore one-handed lifts are preferable. The basic lifts for improving the one-handed snatch, besides practicing the lift itself for technique and power. Squats - Always squat. Ass on heels. One handed overhead squats - A brutal exercise.
Power clean the weight and then drop down into a rock bottom squat.
Try to sit in the hole as long as you can. Sets of five are preferable. Side bends - Use bodyweight as soon as you can to toughen the obliques. Good Mornings - Use about 100kg for sets of eight. Pull as hard and as high as possible without dipping below the bar.