Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
quan nhung » qua nhung, cua nhung, luan chung
nhung cong » dung cong, thong cong, hang cong
hieu manh » hieu nganh, dieu hanh, hien hanh
canh ban » can ban, canh van, doanh ban
canh dan » canh van, sanh dan, thanh dan
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan tap » toan ban

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (chieu xanh)) - ((canh ban) OR (canh dan)) quan nhung cong dan toan tap~.
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) or (chieu xanh)) - ((canh ban) or (canh dan)) quan nhung cong dan toan tap*.