Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, nhung don
hoc chieu » hoc thieu, ho chieu, hoc hien
hang cong » dang cong, hang nong, bang cong
tranh va » tranh van, trang va, trinh va
than cau » toan cau, phan cau, than cap

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