Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
bang cong » dang cong, bang song, hang cong
tung tam » trung tam, dung tam, tuong tac
vung tam » vung tau, vung tay, trung tam
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan ban » van ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chieu xanh) or (trieu tinh)) - thanh ((tung tam) OR (vung tam)) bang cong tac toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu xanh) OR (trieu tinh)) - thanh ((tung tam) OR (vung tam)) bang cong tac toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu xanh) or (trieu tinh)) - thanh ((tung tam) OR (vung tam)) bang cong tac toan ban".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu xanh) or (trieu tinh)) - thanh ((tung tam) OR (vung tam)) bang cong tac toan ban*.