Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
luan trong » quan trong, luat trong, luan tuong
hien xanh » hien hanh, hien nhanh, chieu xanh
hanh mang » nhanh mang, hanh trang, nhanh lang
mang luan » tang luan, hang luan, bang luan
cong dan » cong san, cong tan, cong dong
han tap » han tai, toan tap, nhan tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien xanh) or (chieu sach)) - hanh mang luan trong ((cong dan) or (huong dan)) han tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (chieu sach)) - hanh mang luan trong ((cong dan) OR (huong dan)) han tap.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (chieu sach)) - hanh mang luan trong ((cong dan) or (huong dan)) han tap*.