Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, hieu cach
chieu sang » hieu lang, nhieu tang
trung cua » truong cua, trung tuan, trung cap
ban cong » bang cong, van cong, phan cong
cong san » cong tac
san toan » van toan, dan toan, manh toan
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 xanh) or (((chieu sach) OR (chieu sang)))) - thanh trung cua ban cong san toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (((chieu sach) OR (chieu sang)))) - thanh trung cua ban cong san toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) or (((chieu sach) OR (chieu sang)))) - thanh trung cua ban cong san toan cao".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (((chieu sach) OR (chieu sang)))) - thanh trung cua ban cong san toan cao*.