Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
danh trung » dang trung, dinh trung, thanh trung
manh trung » manh tung, thanh trung, manh hung
ho chieu » theo chieu, hoc thieu, doi chieu
cua dung » cua dang, cua dong, qua dung
trong ca » trong cac, trong nha
toan cau » toan cao, toan ban, toan tap
ca toan » cua toan, va toan, bai 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 trung)) cua dung trong ca toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - ((danh trung) OR (manh trung)) cua dung trong ca toan cau.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - ((danh trung) or (manh trung)) cua dung trong ca toan cau*.