Perhaps you should try some spelling variations:
doi chieu » doc hieu, doi chi, mot chieu
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, mot chieu
cua dung » cua dang, cua dong, qua dung
cong van » cong vang, cong san, song van
van tan » van tuan, van ban, van tai
tan cua » than cua, tang cua, toan cua

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: ((doi chieu) OR (ho chieu)) sach - ((hanh chinh) OR (thanh cong)) cua dung cong van tan cua~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) OR (ho chieu)) sach - ((hanh chinh) or (thanh cong)) cua dung cong van tan cua~".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) OR (ho chieu)) sach - ((hanh chinh) or (thanh cong)) cua dung cong van tan cua*.