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
hanh ban » thanh ban, hang ban, hanh han
hanh san » thanh san, khach san, thanh son
cua dung » cua dang, cua dong, qua dung
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap

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 (doi chieu)) sach - ((hanh ban) or (hanh san)) cua dung cong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chieu)) sach - ((hanh ban) OR (hanh san)) cua dung cong dan toan cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (doi chieu)) sach - ((hanh ban) or (hanh san)) cua dung cong dan toan cao*".