This is tip 2 of 4 for Bubble Witch 2 Saga 83.
Level 83 Cheat #2: Avoid the poison bubbles.
Another option is to turn the board so you can gain access to the single white bubble on the other side. If you can create and match of three connecting to it, the bubble will turn into a color. Then, clear it and you will find yourself with an narrow opening to the ghost.