Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
thong cong » trong cong, tong cong, thong thong
hieu lang » chieu sang, hieu quang, nhieu tang
tranh va » tranh van, trang va, trinh va
va thong » va thuong, va phuong, he thong
cong san » cong tac
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu xanh) or (hieu lang)) - canh tranh va thong cong san ((toan cau) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (hieu lang)) - canh tranh va thong cong san ((toan cau) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (hieu lang)) - canh tranh va thong cong san ((toan cau) or (toan tap))*.