Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
luan thong » luan phong, luan tuong, luat thong
doi chieu » doc hieu, doi chi, ho chieu
cach dung » sach dung, cach mang, tac dung
duong van » duong va, luong va, dang van
cong tac » cong ty
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu xanh - cach dung luan thong ((duong van) or (cong tac)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - cach dung luan thong ((duong van) OR (cong tac)) toan cau.
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - cach dung luan thong ((duong van) or (cong tac)) toan cau*.