Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh toan » thanh hoa, thanh san, tinh toan
lanh manh » lanh tranh, lan anh, van manh
dang cong » dung cong
manh toan » anh tuan, tinh toan
ho chieu » theo chieu, hoc thieu, doi chieu
manh cua » doanh cua, ban cua

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - lanh manh cua ((dang cong) OR (dung trong)) ((manh toan) OR (thanh toan)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - lanh manh cua ((dang cong) or (dung trong)) ((manh toan) OR (thanh toan)) cau~".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - lanh manh cua ((dang cong) or (dung trong)) ((manh toan) OR (thanh toan)) cau*.