Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
hanh trang » thanh trung, hanh trinh, minh trang
ho chieu » hoc thieu, doi chieu, mot chieu
ban cong » bang cong, van cong, phan cong
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cao » toan cao, thai cao, than cap

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chieu)) sach - ((hanh trang) OR (canh tranh)) cua ban cong dan than cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (theo chieu)) sach - ((hanh trang) or (canh tranh)) cua ban cong dan than cao~".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (theo chieu)) sach - ((hanh trang) or (canh tranh)) cua ban cong dan than cao*.