Soak the glass noodles in water as indicated on the package.
Crush dried chilies, fresh chilies, shallots, and lemongrass with a mortar and pestle.
In a medium-heated wok, heat oil and fry the pounded paste for 20 seconds, or until fragrant.
Add chopped chicken thighs and cook until they’re half done.
Pour in water and stir in all seasonings including fermented fish sauce, fish sauce, salt, and MSG, cooking until the chicken is done.
Stir in the glass noodles and cook for one more minute.
Turn off the heat, add lemongrass, lemon basil, and green onions, and mix well with the noodles and chicken.