Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
chong cong » cong cong, thong cong, phong cong
cuong cong » cong cong, luong cong, duong cong
hanh hang » thanh hang, hang hang, hanh han
hang hoac » hang hoa, hang khoa, nang hoc
ho chieu » hoc thieu, mot chieu, doi chieu
tap danh » tac danh, tao danh, tap dan
danh bat » doanh bat, anh bai, dinh ba

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 hoac ((chong cong) or (cuong cong)) tap danh bat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (ho chieu)) sach - hanh hang hoac ((chong cong) OR (cuong cong)) tap danh bat.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) OR (ho chieu)) sach - hanh hang hoac ((chong cong) or (cuong cong)) tap danh bat".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) OR (ho chieu)) sach - hanh hang hoac ((chong cong) or (cuong cong)) tap danh bat*.