Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trinh » canh tranh, hanh chinh
quan nhung » qua nhung, quang hung, gian nhung
luan chung » luan chinh
cua nhung » va nhung
ho chieu » theo chieu, hoc thieu, doi chieu
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap

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 ((((quan nhung) or (luan chung))) or (cua nhung)) cong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh trinh ((((quan nhung) OR (luan chung))) OR (cua nhung)) cong dan toan cao.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh trinh ((((quan nhung) or (luan chung))) or (cua nhung)) cong dan toan cao*.