Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
lanh manh » lanh tranh, lan anh, anh anh
dong cong » duong cong, dung cong, dang cong
van manh » van minh, van anh, van hanh
cua dong » chua dong, cua cong, cua dang
cong san » cong tac
toan cao » toan ban
toan tap » toan ban

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: theo chieu sach - ((lanh manh) OR (van manh)) cua dong cong san ((toan cao) OR (toan tap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - ((lanh manh) OR (van manh)) cua dong cong san ((toan cao) or (toan tap))~".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - ((lanh manh) OR (van manh)) cua dong cong san ((toan cao) or (toan tap))*.