Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
dinh trung » sinh trung, dinh trong, kinh trung
manh tung » manh hung, thanh tung
ho chieu » theo chieu, hoc thieu, doi chieu
qua dung » quang dung, su dung, qua song
cong tac » cong ty
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 - ((dinh trung) or (manh tung)) qua dung ((cong san) OR (cong tac)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - ((dinh trung) OR (manh tung)) qua dung ((cong san) OR (cong tac)) toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - ((dinh trung) or (manh tung)) qua dung ((cong san) OR (cong tac)) toan ban".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - ((dinh trung) or (manh tung)) qua dung ((cong san) OR (cong tac)) toan ban*.