Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
nguong dan » huong dan
hanh hang » thanh hang, hang hang, hanh han
cua nhung » va nhung
ho chieu » hoc thieu, doi chieu, mot chieu
hang cua » mang cua, hang ca, huong cua
nong dan » cong dan, nong san, huong dan
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 hang cua nhung ((nong dan) or (nguong dan)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (ho chieu)) sach - hanh hang cua nhung ((nong dan) OR (nguong dan)) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) OR (ho chieu)) sach - hanh hang cua nhung ((nong dan) or (nguong dan)) toan cau".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) OR (ho chieu)) sach - hanh hang cua nhung ((nong dan) or (nguong dan)) toan cau*.