Rinse the salmon with salt and vinegar, then drain well. Lightly sear the salmon in a nonstick skillet. Marinate the salmon with 2 tablespoons fish sauce, 2 tablespoons oyster sauce, and black pepper. Let it sit for 15 minutes to absorb the flavors.

Sauté ginger, green onion, and garlic until fragrant, then add the salmon. Gently turn the salmon, then pour in enough boiling water to just cover the fish. Add 2-3 chili peppers; for more heat, slice the peppers before adding.