Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
cua thong » cua thuong, cua khong, cua tong
ho chieu » theo chieu, hoc thieu, doi chieu
cap toan » lap toan, phap toan, cap hoang
tap toan » tap doan, tap quan, 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 - hanh tranh cua thong thong ((cap toan) or (tap toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh tranh cua thong thong ((cap toan) OR (tap toan)) cau.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh tranh cua thong thong ((cap toan) or (tap toan)) cau*.