To prepare the eggs, in a bowl, whisk the eggs with the salt, then in a pan over medium-low heat, cook until just set and slice into strips.
To prepare the noodles, in a bowl, soak the rice vermicelli in hot water for about 2 minutes until just tender, then rinse with cold water and drain well.
To make the sauce, in a bowl, mix the curry powder, white pepper, salt, sugar, soy sauce, and water until combined.
To stir-fry the shrimp, in a wok over high heat, add the cooking oil and cook the shrimp until just pink, then add the garlic and cook until fragrant, then remove.
To stir-fry the vegetables, in the same wok over high heat, add cooking oil, onion, and bell peppers and stir-fry briefly until fragrant, then remove.
To finish the dish, in the wok over high heat, add the cooking oil and the noodles, then return the shrimp and vegetables, pour in the sauce, add the bean sprouts, scallions, and eggs, and toss gently until everything is evenly coated.