This looks like a normal level until you start clearing the candy on the bottom and end up with the entire batch being replaced by bombs. You end up with two whole layers of bombs down the bottom, and some marmalade coated special candy up top.
Start by making as many matches with the candy and the bombs as you can down the bottom, but don’t worry too much about the chocolate spreading, it may do you a favor and diffuse some of the bombs. Once you run out of moves on the bottom, start freeing up the special candy up top and use it to diffuse any bombs you couldn’t get to. Try to mix the candy together when possible – save the colour bomb for any candy bombs you wouldn’t’ quite reach, or try to mix it with another special candy.
Chocolate can stop the bombs regenerating, but this isn’t a good thing, as you cannot reach the jelly unless it has an object in it. If the chocolate clogs up the bomb machine, you’ll need to free it up.
In Candy Crush Saga level 334 you need to clear the jelly and score 70,000 points.
The board on level 334 is in two halves. The top half has no jelly but a selection of vertical striped candies and a color bomb under marmalade. The bottom half contains the double layers of jelly, with a bomb maker above every column which produces 16 move bombs apart from the center which has four chocolate makers. You have just 30 moves.
As soon as you make matches at the bottom, bombs will fall down and so you will then have just sixteen moves before they explode. It can be wise to start at the top and unlock some of the special candies form their marmalade, but if you spend too long working just at the top, you will not leave yourself enough time to clear the jelly below. The best way to win this level is to match the color bomb with a striped candy. If you are lucky this will destroy a majority of the jelly plus any bombs that are close to exploding and then you will be left with just a few matches to make. There is a luck factor here but with a color bomb already on the board and plenty of striped candies it should not be too tricky.
You have the option of starting level 334 with a color bomb and this could be useful but possibly not necessary. A bomb cooler could be a useful booster but again not necessary as could a lollipop hammer. Only use these if you are very frustrated with the level and close to winning.