Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
hanh tranh » canh tranh, hanh trinh, hanh trang
dung cong » dung trong
tranh va » tranh van, trang va, trinh va
cong tac » cong ty
than cau » toan cau, than cap, thanh chau
phan cau » phan dau, phan cac, phan tu
va dung » van dung, va duong, vat dung

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)) - hanh tranh va dung cong tac ((than cau) or (phan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chieu sang)) - hanh tranh va dung cong tac ((than cau) OR (phan cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu xanh) OR (chieu sang)) - hanh tranh va dung cong tac ((than cau) or (phan cau))".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) OR (chieu sang)) - hanh tranh va dung cong tac ((than cau) or (phan cau))*.