Perhaps you should try some spelling variations:
luan phuong » lan phuong, quang phuong, doan phuong
hanh trung » thanh trung, hanh trang, manh trung
trung luan » truong luan, trung tuan, trung quan
mot chieu » doi chieu
ho chieu » theo chieu, hoc thieu, doi chieu
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
toan tap » toan 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 (mot chieu)) sach - hanh trung luan phuong ((cong dan) OR (cong tan)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (mot chieu)) sach - hanh trung luan phuong ((cong dan) OR (cong tan)) toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (mot chieu)) sach - hanh trung luan phuong ((cong dan) OR (cong tan)) toan tap".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (mot chieu)) sach - hanh trung luan phuong ((cong dan) OR (cong tan)) toan tap*.