To soak the glass noodles, in a bowl, add the dried glass noodles and cover with hot water and let sit for about 2 minutes until softened, then drain and cut into shorter pieces.
To season the shrimp, in a bowl, mix the shrimp with a pinch of salt and white pepper.
To cook the filling, in a pan over high heat, add the cooking oil and stir-fry the carrot and cabbage for about 2 minutes until slightly softened and most of the moisture has evaporated, then add the garlic and scallions and stir-fry briefly until fragrant, then add the glass noodles, oyster sauce, hoisin sauce, and white pepper and mix well, then add the shrimp and cook for about 30 seconds until it begins to turn opaque, then remove from heat and let cool.
To wrap the spring rolls, place a wrapper in a diamond shape, add the filling near the bottom, fold, roll tightly, and seal with the egg.
To fry the spring rolls, in a pot over high heat, heat the cooking oil to 350°F (177°C), then add the spring rolls and fry for about 4 minutes until golden and crispy, then remove and drain on a rack.