Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hoc chieu » hoc thieu, ho chieu, hoc hien
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
cua nong » cuu nong, cua dong, cua song
cong tan » cong tac, cong san, cong thanh
doan cau » toan cau, doan dau, doanh chau
doan cap » doanh cao, dan ca, toan cao

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 - hanh tinh ((cua cong) or (cua nong)) cong tan ((doan cau) or (doan cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - hanh tinh ((cua cong) OR (cua nong)) cong tan ((doan cau) OR (doan cap)).
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - hanh tinh ((cua cong) or (cua nong)) cong tan ((doan cau) or (doan cap))*.