Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, nhieu tang
thong cong » trong cong, tong cong, thong thong
hieu lang » hieu quang, nhieu tang, hieu van
tranh va » tranh van, trang va, trinh va
va thong » va thuong, va phuong, he thong
cong tan » cong tac, cong san, cong thanh
tan phan » toan phan, than phan, van phan
phan dau » phan tu, hang dau

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 (((chieu sang) or (hieu lang)))) - canh tranh va thong cong tan phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (((chieu sang) OR (hieu lang)))) - canh tranh va thong cong tan phan dau.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (((chieu sang) or (hieu lang)))) - canh tranh va thong cong tan phan dau*.