Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
doi chieu » doi chi, ho chieu, mot chieu
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong hoan » cong hoa, dong hoa, cong ha
doc hieu » toc thieu, hoc thieu, hoc hien
cong san » cong tac
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: ((doi chieu) OR (doc hieu)) tinh - hanh tranh cua nhung ((cong hoan) or (cong san)) phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (doc hieu)) tinh - hanh tranh cua nhung ((cong hoan) OR (cong san)) phan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) OR (doc hieu)) tinh - hanh tranh cua nhung ((cong hoan) or (cong san)) phan cau".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) OR (doc hieu)) tinh - hanh tranh cua nhung ((cong hoan) or (cong san)) phan cau*.