Do cross crunches. A normal crunch only you go to the left and right instead of straight up.

Man.... I'm working out my abs every single days, but they don't wanna come out... :(

those are veeeeeeeeery difficult...

Something that you can try is lay down on your back, raise your legs and do a big circle with your leg straight. In this way you can work out all your abs.

Standing up hold a weight with your left hand and flex your right side abs.
Do 20 reps then do the opposite.

3 set of this.

Cross crunches. 30 reps 3 set

hey! We have the almost the same nick!!!