Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
hanh tranh » canh tranh, hanh trinh, hanh trang
mot chieu » doi chieu, ho chieu
cong dang » cong dong, cong dan, cong dung
cua dung » cua dang, cua dong, cua rung
qua dung » quang dung, su dung, qua song
dang van » hoang van, hang va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((mot chieu) or (theo chieu)) sach - hanh tranh ((cua dung) or (qua dung)) cong dang van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((mot chieu) OR (theo chieu)) sach - hanh tranh ((cua dung) OR (qua dung)) cong dang van ban.
• Adding a wildcard symbol may retrieve word variants: ((mot chieu) or (theo chieu)) sach - hanh tranh ((cua dung) or (qua dung)) cong dang van ban*.