Heat up a generous amount of oil in a wok or large frying pan over medium heat. Add the garlic and cook, stirring, until aromatic. Turn the heat up a bit and add the chicken and cook until lightly golden. Add the Chinese sausage and shrimp. Cook, stirring often, until the chicken is cooked through, the Chinese sausage is crispy, and the shrimp is cooked. Add the noodles, bean sprouts, tofu puffs, and the sauce and toss until everything is well coated and the noodles are heated through.