Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
hanh manh » hanh mang, lanh manh, hoang manh
ban huong » bang phuong, ban hang, anh huong
ho chieu » hoc thieu, doi chieu, mot chieu
manh cua » doanh cua, ban cua
toan cao » toan tap
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: ((ho chieu) OR (theo chieu)) sach - hanh manh cua ban huong dan ((toan cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chieu)) sach - hanh manh cua ban huong dan ((toan cao) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (theo chieu)) sach - hanh manh cua ban huong dan ((toan cao) or (toan ban))".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (theo chieu)) sach - hanh manh cua ban huong dan ((toan cao) or (toan ban))*.