Perhaps you should try some spelling variations:
hanh trinh » hanh chinh
chieu xanh » chieu sach, chieu sang, chieu tinh
hieu manh » hieu nganh, dieu hanh, hien hanh
van trong » van truong, vang trong, ban trong
san nhanh » san thanh, nhan nhanh, ban hanh
nhanh cau » nhanh cay, thanh chau, nhanh ha
cong san » cong tac

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hieu manh) or (chieu xanh)) - ((hanh trinh) OR (canh tranh)) van trong cong san nhanh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (chieu xanh)) - ((hanh trinh) OR (canh tranh)) van trong cong san nhanh cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hieu manh) or (chieu xanh)) - ((hanh trinh) OR (canh tranh)) van trong cong san nhanh cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) or (chieu xanh)) - ((hanh trinh) OR (canh tranh)) van trong cong san nhanh cau*.