Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh tranh » canh tranh, hanh trinh, hanh trang
hoc chieu » hoc thieu, ho chieu, hoc hien
trong tan » trong quan, trong cac, trong ca
cua dong » chua dong, cua dang, cua nong
tran cau » tran chau, toan cau, ran cau

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