Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trang » thanh trung, canh tranh, hanh trinh
thanh tung » thanh cong
nhung cong » dung cong, thong cong, hang cong
ho chieu » theo chieu, hoc thieu, doi chieu
cong tan » cong tac, cong san, cong thanh
than cau » toan cau, phan cau, than cap
khan cap » khan ap, than cap, khoan cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - ((hanh trang) or (thanh tung)) va nhung cong tan ((than cau) or (khan cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - ((hanh trang) OR (thanh tung)) va nhung cong tan ((than cau) OR (khan cap)).
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - ((hanh trang) or (thanh tung)) va nhung cong tan ((than cau) or (khan cap))*.