Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
hanh tranh » canh tranh, hanh trang, lanh tranh
hanh trinh » canh tranh, hanh chinh
dang cong » dung cong
cua dang » cua cong, cua ban
tan hang » tan khang, van hang, gan hang
ban hang » ngan hang

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 tranh) or (hanh trinh)) cua dang cong ((tan hang) OR (ban hang)) ca~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - ((hanh tranh) OR (hanh trinh)) cua dang cong ((tan hang) OR (ban hang)) ca.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - ((hanh tranh) or (hanh trinh)) cua dang cong ((tan hang) OR (ban hang)) ca".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - ((hanh tranh) or (hanh trinh)) cua dang cong ((tan hang) OR (ban hang)) ca*.