?
Come again? You mean you staked all
three of the vampiric coffins right?
Anyway, if you have difficulties, you may want to consider getting outside help. Assuming that you are a good party, approach the Paladins in the Temple District and Aran Linvail for help.
You should have the Amulet of Power, if possible, equip this to a tank and let him/her engage Bodhi. Get all your Clerics( or relevant equipment) in your party to cast Sunray inside the room, this alone should toast most, if not all of Bodhi's vampire minions.
Make sure you summon some summons before entering the fight. Mountain Bears, Fire Elementals, Aerial Servants and Skeleton Warriors are your best bet.
With all this in mind, go kick some booty!