Perhaps you should try some spelling variations:
thanh thuong » thanh huong, thanh chuong, thanh phuong
thuong quan » thuong quang, thong quan, truong quan
chieu sach » chinh sach, chiet tach, chieu sang
chieu xanh » chieu sang, chieu tinh, hieu manh
trinh toan » thanh toan, trinh han, trinh quan
quan dang » quang dang, quan lang, quan dong
dang cong » dung cong

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