Perhaps you should try some spelling variations:
thanh trung » thanh tung
dung truong » duong truong, dung trong, dung trung
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
trung tuan » trung thanh, trung tam, tran tuan
thanh toan » thanh hoa, tinh toan
tuan dung » tuan duong, tran dung, tan dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu xanh) or (chieu sach)) - thanh trung tuan dung truong ((thanh toan) OR (thanh san)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (chieu sach)) - thanh trung tuan dung truong ((thanh toan) OR (thanh san)) ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu xanh) or (chieu sach)) - thanh trung tuan dung truong ((thanh toan) OR (thanh san)) ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) or (chieu sach)) - thanh trung tuan dung truong ((thanh toan) OR (thanh san)) ban*.