Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, hieu manh
canh trinh » canh tranh, canh tinh, anh trinh
hanh trinh » canh tranh, hanh chinh
trong san » cong san, dong san, trong ca
hoc hieu » hoc thieu, hoc hien, doc hieu
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: hoc hieu nganh - ((canh trinh) OR (hanh trinh)) xay dung ((trong san) or (trong cac)) phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu nganh - ((canh trinh) OR (hanh trinh)) xay dung ((trong san) OR (trong cac)) phan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hieu nganh - ((canh trinh) OR (hanh trinh)) xay dung ((trong san) or (trong cac)) phan cau".
• Adding a wildcard symbol may retrieve word variants: hoc hieu nganh - ((canh trinh) OR (hanh trinh)) xay dung ((trong san) or (trong cac)) phan cau*.