In a wide pan over medium-low heat, add butter and oil.
When butter just begins to melt, add garlic and chili peppers. Cook, stirring occasionally, for about 1 to 2 minutes or until garlic lightly browns.
Increase the heat to high, stirring regularly to prevent garlic from burning.
Add bell peppers and cook, stirring regularly, until tender-crisp.
Add shrimp and cook, stirring regularly, for about 2 to 3 minutes or just until color changes.
Add wine and cook, stirring regularly, for about 1 minute or until wine is almost absorbed.
Add tomato sauce and continue to cook, stirring and tossing regularly, for another 2 to 3 minutes or until shrimp are cooked and sauce is thickened.
Season with salt to taste. Remove shrimp from pan and transfer onto sizzling plates.
Add bread crumbs to the pan and cook, stirring regularly, for about 1 minute or until lightly browned (the bread crumbs will absorb some of the leftover sauce in the pan).
Sprinkle bread crumbs over gambas and serve hot.