Check the flow
This board is split into two 'zones', one on each side of the screen. Four drinking straws connect the top of the left side with the bottom of the right. This connection is a key aspect of passing the level as it will behave differently based on the fill level of the purple soda.
For the first half of the level, focus only on the left zone, making matches that draw down candies from the top, fed by the candy collection on the right. In a few moves the candies will flow down and hopefully clear the frosting from the lower part of the right-side board.
Blast the frosting
On the left, try to create fish (by matching in a 2 x 2 square) or striped/wrapped candies and match them whenever you can. These can be used to blast from the left to the right of the screen, helping clear those frosting blocks even faster. The more you clear away, the more straight lines will be cleared so that falling candies can create their own boosters.
As you work through this, soda bottles will drop into the screen (beginning on the right) and when popped will bring up the purple soda level so that the bears can move up.
Keep matching, popping and blasting using these tips and before long the flow will have switched from the left zone being fed by the right, to the right zone being fed by the left. All that purple soda brings the balance over and the bears will move across and up toward the candy string target.
Plan, plot and be patient
This isn't an easy level, so it'll take some careful plotting, planning and patience to get the better of it. As always, don't rush into any move. Take a moment to look a step or two ahead and weigh up the benefit of any move you make. Moves are precious so use them wisely.
With all this soda filling the screen, you can quench your thirst for success in no time!