Fill a large saucepan with enough water to cover all the ingredients. Bring to a boil.
Add the chicken pieces to the boiling water. Cook until cooked through.
Remove the chicken from the water and place in a bowl.
Add the sliced carrot, brown mushroom, and lemongrass to the pan. Cook for 3-4 minutes, or until the vegetables are tender.
Add the bok choy and choy sum to the pan. Cook for another 2 minutes, or until wilted.
Remove all the vegetables to the bowl.
Add the jade phoenix thin noodles to the pan. Cook according to package instructions, usually 2-3 minutes.
Now add all the ingredients in the bowl back to the saucepan.
Drain most of the water so there is enough for how much broth you would like.
Stir in the ginger powder, chicken stock, sesame oil, garlic olive oil, salt, and chili flakes.
Simmer for 1-2 minutes, allowing the flavors to meld together.
Serve hot and enjoy!