Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, nghiep nganh
chieu xanh » chieu sach, chieu sang, chieu tinh
dong trong » duong trong, dung trong, cong trong
hieu manh » dieu hanh, hien hanh, hieu van
tranh cua » doanh cua, manh cua
trong san » trong cac, cong san, dong san
cua dong » chua dong, cua cong, cua dang
san phan » san pham, van phan, sat phan

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((hieu manh) OR (hieu nganh))) OR (chieu xanh)) - canh tranh cua dong trong san phan tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((((hieu manh) OR (hieu nganh))) or (chieu xanh)) - canh tranh cua dong trong san phan tu~".
• Adding a wildcard symbol may retrieve word variants: hoc ((((hieu manh) OR (hieu nganh))) or (chieu xanh)) - canh tranh cua dong trong san phan tu*.