Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
nhung dong » nhung don, nhung cong, nhung dung
dong thanh » truong thanh
cua nhung » va nhung
tung cua » trung cua, tuong cua, dung cua
phan cau » phan dau, phan cac, phan tu
toan tap » toan ban
khan ap » khan cap, han ap, khan dam

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: theo chieu sach - thanh tung cua nhung dong thanh ((((khan ap) OR (phan cau))) OR (toan tap))~.
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - thanh tung cua nhung dong thanh ((((khan ap) or (phan cau))) or (toan tap))*.