Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
cuc phuong » cac phuong, cuu phuong, cua phuong
hanh tang » hanh trang, anh tang, hanh mang
duong van » duong va, luong va, dang van
ho chieu » hoc thieu, doi chieu, mot chieu
tang cuc » tang cuoc, tong cuc, tang cua
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: ((theo chieu) or (ho chieu)) sach - hanh tang cuc phuong ((duong manh) OR (duong van)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (ho chieu)) sach - hanh tang cuc phuong ((duong manh) OR (duong van)) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) or (ho chieu)) sach - hanh tang cuc phuong ((duong manh) OR (duong van)) toan cau".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (ho chieu)) sach - hanh tang cuc phuong ((duong manh) OR (duong van)) toan cau*.