Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
thien danh » thien anh, thien dang, thien thanh
cong luong » cong thuong, nang luong, cong dong
luong ban » luong van, luong bac, luong san
van cong » van dong, van phong, phan cong
ban khan » ban than, ban nhan, ban chan
khan cap » khan ap, than cap, khoan cam
pho van » ho van, phi van, tho van

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thieu xanh) or (thien danh)) - thanh pho van cong luong ban khan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (thien danh)) - thanh pho van cong luong ban khan cap*.