Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
cong thanh » dong thanh, cong trinh, cong tan
tranh van » tran van, trinh van, thanh van
hung cong » nhung cong, hung cuong, phung cong
van hung » van dung, manh hung, van duong
chan tu » phan tu, han tu, chai tu
chon tu » con tu, cho tu, choi tu

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 sach)) - canh tranh van hung cong thanh ((chan tu) or (chon tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chieu sach)) - canh tranh van hung cong thanh ((chan tu) OR (chon tu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu xanh) OR (chieu sach)) - canh tranh van hung cong thanh ((chan tu) or (chon tu))".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) OR (chieu sach)) - canh tranh van hung cong thanh ((chan tu) or (chon tu))*.