Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
canh trinh » canh tranh, hanh trinh, canh tinh
hieu manh » chieu xanh, hieu nganh, dieu hanh
trinh tai » trinh toan, trinh tu, trinh han
dung cong » dung trong
tai dung » trai dung, thi dung, mai dung
cong san » cong tac
san than » sang than, san thanh, ban than
than cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((((hieu manh) or (chieu sang))) or (chieu sach)) - canh trinh tai dung cong san than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((((hieu manh) OR (chieu sang))) OR (chieu sach)) - canh trinh tai dung cong san than cau.
• Adding a wildcard symbol may retrieve word variants: ho ((((hieu manh) or (chieu sang))) or (chieu sach)) - canh trinh tai dung cong san than cau*.