01 - Cook the noodles according to package instructions. Drain, rinse under cold water to halt cooking, and set aside.
02 - In a small bowl, whisk together the soy sauce, oyster sauce, fish sauce, lime juice, and sugar until well combined. Set aside.
03 - Heat 1 tablespoon of vegetable oil in a large wok or skillet over medium-high heat. Add the shrimp in a single layer and stir-fry for 2–3 minutes until they turn pink and are cooked through. Transfer to a plate and set aside.
04 - Add the remaining oil to the wok along with the minced garlic and sliced chilies. Stir-fry for 30 seconds until fragrant, taking care not to burn the garlic.
05 - Toss in the sliced bell pepper, trimmed snow peas, and most of the spring onions (reserve some for garnish). Stir-fry for 2–3 minutes until the vegetables are crisp-tender.
06 - Return the seared shrimp to the wok, add the drained noodles, and pour the sauce over everything. Toss vigorously for 2–3 minutes, ensuring the noodles and shrimp are evenly coated and heated through.
07 - Transfer to serving plates and garnish with fresh coriander leaves, toasted sesame seeds, the reserved spring onions, and lime wedges. Serve immediately while hot.