Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
hanh trang » thanh trung, canh tranh, hanh trinh
mot chieu » doi chieu, ho chieu
va phuong » va thuong, cac phuong
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
va thong » va thuong, he thong, va cong
toan ban » van ban

You may be able to get more results by adjusting your search query.

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