Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
ho chieu » hoc thieu, doi chieu, mot chieu
cong ban » cong bang, cong san, cong dan
cong tan » cong tac, cong san, cong thanh
hang dau » hang va, hang tai

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) OR (ho chieu)) sang - hanh tranh cua cong ((cong ban) OR (cong tan)) hang dau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) OR (ho chieu)) sang - hanh tranh cua cong ((cong ban) or (cong tan)) hang dau~".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) OR (ho chieu)) sang - hanh tranh cua cong ((cong ban) or (cong tan)) hang dau*.