Perhaps you should try some spelling variations:
chieu sang » chieu sach, hieu lang, nhieu tang
chieu xanh » chieu sach, chieu tinh, hieu manh
trung tuan » trung thanh, trung tam, tran tuan
truong cua » truong ca, truong quan, truong cao
nhung cong » dung cong, thong cong, hang cong
cong ban » cong bang, cong san, cong tan
ban toan » bai toan, ban than, van toan
toan cau » toan cao, toan ban, toan tap

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)) - thanh ((trung tuan) or (truong cua)) nhung cong ban toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (chieu xanh)) - thanh ((trung tuan) OR (truong cua)) nhung cong ban toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) OR (chieu xanh)) - thanh ((trung tuan) or (truong cua)) nhung cong ban toan cau".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) OR (chieu xanh)) - thanh ((trung tuan) or (truong cua)) nhung cong ban toan cau*.