The 1.9.9.3 Mì Chua Cay is a local noodle shop in a Da Nang university alley, serving Vietnamese-style sour and spicy ramen and mixed noodles. The mixed noodles and mixed glass noodles come with vegetables, soft-boiled egg, and crispy pork skin toppings. The shop is a single small space with tables spaced apart, and it is cool and clean. Staff service is not smooth, including not responding after being called multiple times.