Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
nhanh mang » nhanh lang, hanh mang, nhanh quang
luan nhung » luan chung, luan hung, luan phuong
quan nhung » qua nhung, cua nhung, luan chung
cong tan » cong san, cong thanh, cong ty
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: theo chieu sach - nhanh mang ((luan nhung) or (quan nhung)) ((cong tan) OR (cong tac)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - nhanh mang ((luan nhung) OR (quan nhung)) ((cong tan) OR (cong tac)) toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - nhanh mang ((luan nhung) or (quan nhung)) ((cong tan) OR (cong tac)) toan ban".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - nhanh mang ((luan nhung) or (quan nhung)) ((cong tan) OR (cong tac)) toan ban*.