Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
tong cong » trong cong, cong cong, dang cong
dung cong » dung trong
manh toan » thanh toan, anh tuan, tinh toan
ho chieu » theo chieu, hoc thieu, doi chieu
canh ban » canh dan, canh van, doanh ban
toan cao » toan ban, toan tap
can ban » van ban, toan 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 - ((canh ban) or (can ban)) cua ((tong cong) or (dung cong)) manh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - ((canh ban) OR (can ban)) cua ((tong cong) OR (dung cong)) manh toan cao.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - ((canh ban) or (can ban)) cua ((tong cong) or (dung cong)) manh toan cao*.