Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
cong huong » cong thuong, cong luong, cong hung
doi chieu » doc hieu, doi chi, mot chieu
tranh cua » doanh cua, manh cua
ho chieu » theo chieu, hoc thieu, mot chieu
chan cau » can cau, chinh cau, nhanh cau
phan cau » phan dau, phan cac, phan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) OR (doi chieu)) sang - hanh tranh cua cong huong dan ((chan cau) or (phan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chieu)) sang - hanh tranh cua cong huong dan ((chan cau) OR (phan cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (doi chieu)) sang - hanh tranh cua cong huong dan ((chan cau) or (phan cau))".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (doi chieu)) sang - hanh tranh cua cong huong dan ((chan cau) or (phan cau))*.