Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
hoc chieu » hoc thieu, ho chieu, hoc hien
tranh va » tranh van, trang va, trinh va
cong tan » cong tac, cong san, cong thanh
than cau » toan cau, phan cau, than cap
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu sach - canh tranh va nhung cong tan ((than cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - canh tranh va nhung cong tan ((than cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - canh tranh va nhung cong tan ((than cau) or (toan ban))*.