Perhaps you should try some spelling variations:
chieu sach » chiet tach, chieu sang, chieu xanh
thanh toan » thanh hoa, thanh san, tinh toan
trong hach » trong mach, trong cach, trong hanh
hach toan » manh toan
toan van » tran van, toan ban, tan van
van dung » van dong, xay dung, tin dung
toan cau » 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: hoc ((chieu sach) OR (chinh sach)) - thanh toan van dung trong hach toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu sach) OR (chinh sach)) - thanh toan van dung trong hach toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sach) OR (chinh sach)) - thanh toan van dung trong hach toan cau*.