I passed it, I looked everywhere for help but nothing.
So I decided I will help.
Try the following:
1. Try to open up the sides or bottom on every move.
2. Try to get about 3 combos, I made 2 of the wrapped candy and striped candy and 1 of the disco ball and stripe combo
3. Cool tip - when u get a chance to swap a stripe with disco bomb DON'T do it right away.
Finish as many combinations as you can so that you can get most number of the candies possible in the colour of the stripy candy.
Then you make the swap. This will help you get rid of most of the lines after.
4. try to kill the TOP 2 corners
Hope this helps. Don't give up. I played every day for 2 weeks and finally finished the level with the highest score :)