Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, nhieu tang
thanh tung » thanh cong
hieu lang » hieu quang, nhieu tang, hieu van
cua nhung » va nhung
cong bang » cuong bang, dong bang, hong bang
tung cua » trung cua, tuong cua, dung cua
cong ban » cong san, cong tan, cong dan
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 ((chieu sang) OR (hieu lang)) - thanh tung cua nhung ((cong ban) or (cong bang)) than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (hieu lang)) - thanh tung cua nhung ((cong ban) OR (cong bang)) than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) OR (hieu lang)) - thanh tung cua nhung ((cong ban) or (cong bang)) than cau".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) OR (hieu lang)) - thanh tung cua nhung ((cong ban) or (cong bang)) than cau*.