To make the dressing: In a bowl, mix together the fish sauce, lime juice, and palm sugar. Whisk until dissolved. Add the finger hot pepper and garlic. Mix well and set aside.
To cook the instant noodles: In a pot over high heat, bring water to a boil. Add the Mama instant noodles and cook until al dente, about 2 minutes. Remove and drain.
To cook the shrimp: In the same pot, add the shrimp and boil until they turn pink, about 30 seconds. Remove and drain.
To cook the ground pork: In the same pot, add the ground pork and boil until completely cooked through. Remove and drain.
To toss the instant noodle salad: In a mixing bowl, add the onion, grape tomatoes, Mama instant noodles, shrimp, ground pork, and the dressing. Mix together. Lastly, add the Chinese celery and cilantro. Mix again.
To serve: Place it on a serving plate and enjoy.