Perhaps you should try some spelling variations:
chieu sang » chieu sach, hieu lang, nhieu tang
chieu xanh » chieu sach, chieu tinh, hieu manh
manh trung » manh tung, thanh trung, manh hung
thanh chau » thanh cha, thanh cham, thanh chu
trung ung » trung uong, trung dung, trung hung
dung cong » dung trong
thang cau » hang cau, thong cau, nhung cau
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 xanh)) - manh trung ung dung cong san ((thang cau) OR (thanh chau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (chieu xanh)) - manh trung ung dung cong san ((thang cau) OR (thanh chau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) or (chieu xanh)) - manh trung ung dung cong san ((thang cau) OR (thanh chau))".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (chieu xanh)) - manh trung ung dung cong san ((thang cau) OR (thanh chau))*.