Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
thanh vung » thanh vuong, thanh tung, thanh hung
dang cong » dung cong
hach toan » thanh toan, manh toan
vung tam » vung tau, vung tay, trung tam
tam dang » nam dang, tam dan, tran dang
tac toan » tap toan, tam toan, tich toan

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