Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, hieu manh
chieu tinh » trieu tinh, lieu tinh, chau tinh
nhan dan » phan dau, gian dan, nhan tai
van nang » van quang, van ban, van dong
cong san » cong tac
toan cau » toan cao, toan ban, toan tap
dan van » dang van, doan van, dao van

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 tinh)) - nhan dan van nang ((cong dong) or (cong san)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chieu tinh)) - nhan dan van nang ((cong dong) OR (cong san)) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu xanh) OR (chieu tinh)) - nhan dan van nang ((cong dong) or (cong san)) toan cau".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) OR (chieu tinh)) - nhan dan van nang ((cong dong) or (cong san)) toan cau*.