Your main challenge here is the chocolate fans in the bottom left and bottom right corners. Try to create striped or wrapped candies in what you need and set off as much as you can with the powerups. Inevitably one of the colors ends up being in short supply, so try to keep an eye on it to keep it even. Shoot through the advancing chocolate at times to keep it in check and you should be good to go here. Color bombs can help you catch up on a color when you are having trouble making matches or clear out a massive amount of pieces of undesired pieces.
Patricia Frederick’s Tips for Candy Crush Level 247
Clear the board often with striped/wrapped combos which should help with the orders and keep the chocolate in check. A color bomb can either gather a color you need or remove one that is unwanted and clogging the board.