To pass this stage with full star mastery, the key is to break enough blocks on top of killing all the pigs. The first shot is pretty generous that you simply have to aim at the house.
Power Activation Point
Tap your jedi laser sword to destroy as many blocks as you can. The goal is to open up the blocks for your second bird launch.
First Shot Result
Most of the first house should be pretty much destroyed. You can then break the rest through with your second bird launch to trigger the TNT bomb.
Aim at what is left over of the house that offers the best way to shoot through the triangle stopper.
Second Power Activation Point
Tap your laser gun to make all the circles tumble, which triggers the TNT bomb.
Second Shot Result
The TNT bomb blows up, destroying most of the blocks while killing all of the pigs. Note that you may have to try this stage a couple of times as you will break almost all of the blocks before you are awarded the three star rating.