Perhaps you should try some spelling variations:
doi chieu » doc hieu, doi chi, mot chieu
tranh cua » doanh cua, manh cua
cong toan » cong tan, cong tuan, cong doan
cong hoan » cong hoa, dong hoa, cong san
ho chieu » theo chieu, hoc thieu, mot chieu
cua dung » cua dang, cua dong, qua dung
phan dau » phan tu, hang dau

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 - canh tranh cua dung ((cong toan) OR (cong hoan)) phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chieu)) sang - canh tranh cua dung ((cong toan) OR (cong hoan)) phan dau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (doi chieu)) sang - canh tranh cua dung ((cong toan) OR (cong hoan)) phan dau".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (doi chieu)) sang - canh tranh cua dung ((cong toan) OR (cong hoan)) phan dau*.