Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh tranh » canh tranh, hanh trang, lanh tranh
hanh trinh » canh tranh, hanh chinh
nhung cong » dung cong, thong cong, hang cong
hoc chieu » hoc thieu, ho chieu, hoc hien
cong dan » cong san, cong tan, huong dan

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) or (hanh trinh)) va nhung cong dan ((toan ban) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - ((hanh tranh) OR (hanh trinh)) va nhung cong dan ((toan ban) OR (van ban)).
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - ((hanh tranh) or (hanh trinh)) va nhung cong dan ((toan ban) or (van ban))*.