Wipe the saucepan clean and put it back on the heat. Add pork pieces along with turmeric powder and shrimp paste. Stir well to combine. Add the herbs as well as the kaffir lime leaves. Cook, stirring for about 5 minutes to coat the meat pieces in the herbs and spices. Add water. Cover with a lid and leave on a gentle simmer for 45 minutes or until the pork pieces are flaking. Stirring occasionally.