The most difficult part of level 94 is a large amount of obstacles such as crates and walls. First eliminate the crates and acorns to free the space for new pieces. The walls hinder the pieces movement, but you still can make matches and explode the bombs through them.
When you get to the right side of the field, try to keep to the bottom of the field, but also keep an eye on the matches and bonuses in the rest of the field.
Note that you can also use Rainbow Blast on acorns to help you beat the level. Rainbow Blast charges faster if you combine bomb explosions.