Chinese Vegetarian Stir-Fry

Name: Chinese Vegetarian Stir-Fry
Cuisine: Asian, Chinese
Ingredients: 200g firm tofu, pressed and cut into cubes; 1 cup napa cabbage, chopped; 1 cup bok choy, chopped; 1/2 cup shiitake mushrooms (fresh or dried, soaked); 1/2 cup bamboo shoots, sliced; 1/2 cup baby corn; 1/2 cup water chestnuts, sliced; 1/4 cup dried cloud ear fungus (soaked in warm water for 20 minutes); 1/4 cup snow peas, trimmed; 2 tbsp vegetable oil; 2 cloves garlic, minced; 1 tsp ginger, minced; 2 tbsp light soy sauce; 1 tbsp dark soy sauce; 1 tbsp oyster sauce (vegetarian version); 1/2 cup vegetable broth; 1 tsp sesame oil; 1 tsp cornstarch, dissolved in 2 tbsp water