Soak the noodles in a large bowl of hot water until al dente, 10-20 minutes; drain well.
Cut the leek into 3-inch lengths; cut each piece into very fine shreds.
For sauce, combine broth, soy sauce, curry powder, rice wine, sugar, garlic, ginger and chili sauce in a microwave-safe bowl; microwave on high until hot, about 2 minutes.
Heat a wok or large skillet until hot; add 2 tablespoons of oil.
Add mushrooms, onion, leek and bell peppers. Stir-fry until crisp tender, 2-3 minutes; transfer to a plate.
Heat the remaining 1 tablespoon of oil in the pan. Add shrimp; stir-fry 1 minute.
Add chicken; stir-fry until heated through, about 1 minute.
Add noodles, leek mixture and sauce. Stir-fry until heated through, about 2 minutes.
Stir in corn, bean sprouts and bamboo shoots.
Sprinkle with cilantro and green onions.
