Thoroughly clean the tuna jaw. Add calamansi juice and salt. Mix everything together and marinate for 15 minutes. Rinse with clean water. Drain and set a side.
Boil the rice wash or water. Add garlic, onion, ginger, kamias and tomatoes. Simmer for 20 minutes or until the kamias and tomatoes are tender. Mash the kamias and tomatoes using the back of your wooden spoon.
Add the tuna jaw and okra. Simmer for 3 minutes.
Add the yard long beans and kangkong. Let it simmer for another 3 minutes.
Lastly, add the onion chive and siling panigang.
Season with ground black pepper and fish sauce.