Pass through the vivid pagoda-style archway on Wilson Boulevard in Seven Corners and you’ll invariably find a bustle of activity—shoppers of every ethnicity queuing up for fresh tofu, pork buns, banh mi, Vietnamese coffee, jewelry and electronics from snug, neon-lit storefronts, and emerging from the Good Fortune Supermarket with bags of imported curry paste, mustard greens, jasmine rice, fish sauce and fresh seafood.