Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
hanh trang » thanh trung, canh tranh, hanh trinh
hanh tran » thanh tran, hanh tram, thanh trang
thanh tay » thanh tai, thanh toan, thanh thuy
van dung » van dong, xay dung, tin dung
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac

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 - ((hanh tran) OR (hanh trang)) van dung ((cong tan) or (cong san)) thanh tay~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - ((hanh tran) OR (hanh trang)) van dung ((cong tan) OR (cong san)) thanh tay.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - ((hanh tran) OR (hanh trang)) van dung ((cong tan) or (cong san)) thanh tay".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - ((hanh tran) OR (hanh trang)) van dung ((cong tan) or (cong san)) thanh tay*.