Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
danh trung » dang trung, dinh trung, manh trung
thong dung » thong cong, thong thuong
manh tung » manh hung, thanh tung
trong tam » trong lam, trong nam, trong tan
ho chieu » theo chieu, hoc thieu, doi chieu
tam toan » tap toan, tam than, pham toan
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: ho chieu sach - ((danh trung) or (manh tung)) thong dung trong tam toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - ((danh trung) OR (manh tung)) thong dung trong tam toan cau.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - ((danh trung) or (manh tung)) thong dung trong tam toan cau*.