As you know by now, the game's basic move is grouping four matching Blocks making a diamond shape. But, if you group more than four matching Blocks, they will all dissapear! This is what we call a Combo!
Let's try with the Wood Blocks (for this example they are outlined in black). There are serveral Wood Blocks grouped, but none of them is grouped in the diamond shape... But if we move that single Forest Block inside the cursor, to it's left...
