Combine all the sauce ingredients in a medium bowl and set aside. In a shallow dish, make the pork chop marinade by adding the soy sauce, fish sauce, sesame oil, cornstarch, and wine. Marinate the pork chops for 20 minutes.
Heat about ¼ cup oil in a large skillet. Toss the sliced onions in the flour and fry in the oil until crisp. Remove from the pan and set aside to drain on a paper towel-lined plate. In the same oil, sear the pork chops on both sides until cooked through. Set the pork chops aside to rest.
Add the noodles, cucumber, carrot, bean sprouts, and herbs to a bowl. Top with the pork chops and crispy onions, and serve with the nuoc cham sauce.