Perhaps you should try some spelling variations:
nhanh mang » nhanh lang, nhanh quang, nhanh thang
chieu xanh » chieu sach, chieu sang, chieu tinh
cong nganh » cong ngang, trong nganh, duong nganh
hanh mang » hanh trang, nhanh lang, thanh hang
cong cong » cong dong, trong cong, dung cong
ho chieu » theo chieu, hoc thieu, doi chieu
toan cau » toan ban, toan tap, toan tai
toan cao » toan ban, toan tap

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: ho chieu xanh - ((hanh mang) OR (nhanh mang)) cua cong cong nganh ((toan cau) OR (toan cao))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu xanh - ((hanh mang) or (nhanh mang)) cua cong cong nganh ((toan cau) OR (toan cao))~".
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - ((hanh mang) or (nhanh mang)) cua cong cong nganh ((toan cau) OR (toan cao))*.