Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, hieu lang, nhieu tang
chieu xanh » chieu sach, chieu tinh, hieu manh
nhung cong » dung cong, thong cong, hang cong
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
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 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 cua nhung cong ban toan cau.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (chieu xanh)) - thanh trung cua nhung cong ban toan cau*.