The main objective is to reach the three colour bombs on the right side of the board. There are three ways to do so:
Combine two colour bombs.
Remove the icing on the left and combine colour bomb + striped candy to reach these colour bombs through the icing. Other combinations of special candies (like wrapped candy + striped candy, etc.) are only helpful on the right side of the board. This is very difficult to achieve.
Remove the icing on the left and right side to reach the three colour bombs - also very difficult.
As the only order is colour bombs, lucky candies will make them. You can also use the colour bomb booster.
The basic strategy therefore is to remove the icing on the left, always create colour bombs and combine them with other colour bombs or striped candies. Combinations are more likely during moon struck. Outside of moon struck you have to be careful about Odus. Good luck!