Perhaps you should try some spelling variations:
chieu sang » chieu xanh, hieu lang, nhieu tang
chieu sach » chinh sach, chiet tach, chieu xanh
manh trung » manh tung, thanh trung, manh hung
trung ung » trung uong, trung dung, trung hung
dung cong » dung trong
san thang » van thang, san chang, san thanh
thang cau » hang cau, thong cau, thanh chau
cong san » cong tac

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

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