Na Hang is a rural district of Tuyên Quang in the Northeast region of Vietnam. Its name may have been handed down for thousands of ye…Na Hang is a rural district of Tuyên Quang in the Northeast region of Vietnam. Its name may have been handed down for thousands of years, when Tai ethnic groups started migrating from Yunnan to the South region. Nà Hang means "last fields" in Tày language, which indicated the terrain of the land.