Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
danh trung » dang trung, dinh trung, manh trung
quang dung » quang trung, ung dung, cuong dung
manh tung » manh hung, thanh tung
hach toan » thanh toan, manh toan
ho chieu » theo chieu, hoc thieu, doi chieu
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: ho chieu sach - ((danh trung) or (manh tung)) quang dung trong ((tac toan) OR (hach toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - ((danh trung) OR (manh tung)) quang dung trong ((tac toan) OR (hach toan)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - ((danh trung) or (manh tung)) quang dung trong ((tac toan) OR (hach toan)) cau".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - ((danh trung) or (manh tung)) quang dung trong ((tac toan) OR (hach toan)) cau*.