Perhaps you should try some spelling variations:
hieu manh » chieu xanh, hieu nganh, dieu hanh
chau tinh » cuu tinh, ha tinh, cua tinh
tranh cua » doanh cua, manh cua
cua nong » cua cong, cuu nong, cua dong
cong dan » cong tan, huong dan, cong dong
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 ((hieu manh) or (chau tinh)) - canh tranh cua nong ((cong dan) OR (cong san)) phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((hieu manh) OR (chau tinh)) - canh tranh cua nong ((cong dan) OR (cong san)) phan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((hieu manh) or (chau tinh)) - canh tranh cua nong ((cong dan) OR (cong san)) phan cau".
• Adding a wildcard symbol may retrieve word variants: doi ((hieu manh) or (chau tinh)) - canh tranh cua nong ((cong dan) OR (cong san)) phan cau*.