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, cua nhung, luan chung
trinh toan » tinh toan, thanh toan, trinh han
cua chung » cua nhung, luan chung, luat chung
ho chieu » theo chieu, hoc thieu, doi chieu
toan ban » van ban

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 (cua chung)) cong trinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh trinh ((quan nhung) OR (cua chung)) cong trinh toan ban*.