Make a marinade of sugar, ginger, onions, garlic and soy sauce, cut the meat into thin strips and marinate for about 1 hour. Turn around from time to time.
Heat the oil in a wok. Fry the spring onions, baby corn, bamboo shoots and chili peppers, stirring constantly. Remove after about 1-2 minutes. Now put the meat in the wok and stir-fry until it turns color. Mix the fish sauce, water and cornstarch and add to the meat together with the marinade. Let everything reduce a little, then put the vegetables back in the wok. Cook everything for another 2 minutes while stirring.