Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
hanh trinh » canh tranh, hanh chinh
quan nhung » qua nhung, cua nhung, quang hung
luan chung » luan chinh
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than man » than ma, thanh san, tran manh

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu sach - hanh trinh ((quan nhung) or (luan chung)) cong dan than man~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - hanh trinh ((quan nhung) OR (luan chung)) cong dan than man.
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - hanh trinh ((quan nhung) or (luan chung)) cong dan than man*.