Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trang » thanh trung, canh tranh, hanh trinh
hoc chieu » hoc thieu, ho chieu, hoc hien
trang cua » tranh cua, tang cua, trung cua
tong cong » cong cong, dung cong, dang cong
dan than » dan chan, ban than, van than
than ban » thanh ban, toan ban, than man

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 trang cua ((trong cong) or (tong cong)) dan than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - hanh trang cua ((trong cong) OR (tong cong)) dan than ban.
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - hanh trang cua ((trong cong) or (tong cong)) dan than ban*.