A woman crawl for clam by traditional way, using a device to scratch lightly on the damp ground to explore the clams. Each kilogram of clams can be sold for USD 2. This is traditional work of almost women to earn a living in the shalow beach of Dong Chau in Thai Binh province, Vietnam. Their work starts from early in the morning until sunset. If lucky, they can earn about USD 4 for a working day.