Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
tac nhung » tay nhung, tham nhung, thai nhung
cong tac » cong ty
cong dan » cong san, cong tan, huong dan
than cau » toan cau, than cap, thanh chau
phan cau » phan dau, phan cac, phan tu
hieu ca » hieu cac, hieu cua, hieu va

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hieu ca) or (chieu sach)) - thanh cong tac nhung cong dan ((than cau) or (phan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu ca) OR (chieu sach)) - thanh cong tac nhung cong dan ((than cau) OR (phan cau)).
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu ca) or (chieu sach)) - thanh cong tac nhung cong dan ((than cau) or (phan cau))*.