Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trang » thanh trung, canh tranh, hanh trinh
thanh toan » thanh hoa, thanh san, tinh toan
va phuong » va thuong, cac phuong
manh toan » anh tuan, tinh toan
ho chieu » theo chieu, hoc thieu, doi chieu
va thong » va thuong, he thong, va cong

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 trang ((va thong) OR (va phuong)) thong ((manh toan) or (thanh toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh trang ((va thong) OR (va phuong)) thong ((manh toan) OR (thanh toan)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - hanh trang ((va thong) OR (va phuong)) thong ((manh toan) or (thanh toan)) cau".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh trang ((va thong) OR (va phuong)) thong ((manh toan) or (thanh toan)) cau*.