Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
nhieu tang » hieu lang, nhiet nang
cong cua » cong cu, dong cua, huong cua
cua bang » chua bang, cua ban, cua dang
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
phan cau » phan dau, phan cac, phan 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 sang) or (nhieu tang)) - thanh cong cua bang ((cong dan) OR (cong tan)) phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sang) OR (nhieu tang)) - thanh cong cua bang ((cong dan) OR (cong tan)) phan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sang) or (nhieu tang)) - thanh cong cua bang ((cong dan) OR (cong tan)) phan cau".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sang) or (nhieu tang)) - thanh cong cua bang ((cong dan) OR (cong tan)) phan cau*.