Perhaps you should try some spelling variations:
chuong cong » chong cong, chuong dong, chuong duong
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
nhanh dung » nhanh dong, nhanh hung, thanh dung
cuong cong » cong cong, luong cong, duong cong
hanh dung » thanh dung, anh dung, hanh dong
manh toan » thanh toan, anh tuan, tinh toan
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 dung) or (hanh dung)) cho ((chuong cong) OR (cuong cong)) manh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - ((nhanh dung) OR (hanh dung)) cho ((chuong cong) OR (cuong cong)) manh toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - ((nhanh dung) or (hanh dung)) cho ((chuong cong) OR (cuong cong)) manh toan ban".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - ((nhanh dung) or (hanh dung)) cho ((chuong cong) OR (cuong cong)) manh toan ban*.