In a large saucepan combine water, chicken broth, green onions, soy sauce, garlic, five-spice powder, and ginger. Bring to boiling. Stir in bok choy, sweet pepper strips, and noodles. Return to boiling; reduce heat. Boil gently, uncovered, for 3 to 5 minutes or until noodles are just tender. Stir in the cooked chicken. Heat through. Makes 4 servings.