Perhaps you should try some spelling variations:
trong hach » trong mach, trong cach, trong hanh
hoc thieu » toc thieu, hoc hien
doi chieu » doc hieu, doi chi, ho chieu
trung qua » trung quan, trung cua, truong quan
trong qua » trong quan, thong qua, trong nha
hach toan » thanh toan, manh toan
toan tap » toan ban

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (doi chieu)) sach - thanh ((trung qua) OR (trong qua)) dung trong hach toan tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) or (doi chieu)) sach - thanh ((trung qua) OR (trong qua)) dung trong hach toan tap~".
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (doi chieu)) sach - thanh ((trung qua) OR (trong qua)) dung trong hach toan tap*.