The village of Bario, on the island of Borneo and deep in the Malaysian jungle, is accessible only by air or foot. That limits the types of imported food that’s available. Visitors and locals eat what nature provides. That includes greens from the jungle called “pa’ uh pa’” and a wild ginger flower called “wah lu do.” Reporter Nancy Greenleese samples some of the concoction in this segment of “What’s Cooking?”