Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu xanh, hieu lang, nhieu tang
chieu sach » chinh sach, chiet tach, chieu xanh
trung tai » truong tai, trung tam, trung dai
cong cong » cong dong, trong cong, dung cong
thanh lap » thanh san, phan lap, thanh hai
cong san » cong tac
thanh ca » thanh cha, thanh cac, thanh ha

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 (chieu sach)) - thanh trung tai cong cong san ((thanh lap) or (thanh ca))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sang) OR (chieu sach)) - thanh trung tai cong cong san ((thanh lap) OR (thanh ca)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sang) OR (chieu sach)) - thanh trung tai cong cong san ((thanh lap) or (thanh ca))".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sang) OR (chieu sach)) - thanh trung tai cong cong san ((thanh lap) or (thanh ca))*.