Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hoc chieu » hoc thieu, ho chieu, hoc hien
tranh cua » doanh cua, manh cua
dung cong » dung trong
cua dung » cua dang, cua dong, qua dung
cong tac » cong ty
toan cau » toan cao, toan tai
toan ban » van ban

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 chieu xanh - canh tranh cua dung cong tac ((toan cau) OR (((toan tap) OR (toan ban))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu xanh - canh tranh cua dung cong tac ((toan cau) or (((toan tap) OR (toan ban))))~".
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - canh tranh cua dung cong tac ((toan cau) or (((toan tap) OR (toan ban))))*.