Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hien khanh » hien hanh, dien khanh, thien thanh
hien nhanh » hien hanh, thien thanh, tien thanh
hanh tang » hanh trang, anh tang, hanh mang
tang luan » dung luan
luan ung » luan hung, luon ung, luan chung
ung cong » dung cong, luong cong, duong cong
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, van phan
phan cau » phan dau, phan cac, phan tu

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) or (hien khanh))) or (hien nhanh)) - hanh tang luan ung cong dan phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((chieu sach) OR (hien khanh))) OR (hien nhanh)) - hanh tang luan ung cong dan phan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((((chieu sach) or (hien khanh))) or (hien nhanh)) - hanh tang luan ung cong dan phan cau*.