Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trinh » canh tranh, hanh chinh
duong cong » dung cong, luong cong, duong trong
trinh cua » tinh cua, trinh luat, trinh quan
dong cong » dung cong, dang cong, cong cong
tuan phan » luan phan, toan phan, tuan pham
ho chieu » theo chieu, hoc thieu, doi chieu
phan dau » phan tu, hang dau

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 trinh cua ((dong cong) or (duong cong)) tuan phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh trinh cua ((dong cong) OR (duong cong)) tuan phan dau.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh trinh cua ((dong cong) or (duong cong)) tuan phan dau*.