Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
hanh hang » thanh hang, hang hang, hanh mang
dung cong » dung trong
ho chieu » hoc thieu, doi chieu, mot chieu
hanh han » hanh nhan, hanh phan, hanh san
cua dung » cua dang, cua dong, qua dung
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.

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chieu) or (ho chieu)) sang - ((hanh hang) OR (hanh han)) cua dung cong dan than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (ho chieu)) sang - ((hanh hang) OR (hanh han)) cua dung cong dan than cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) or (ho chieu)) sang - ((hanh hang) OR (hanh han)) cua dung cong dan than cao".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (ho chieu)) sang - ((hanh hang) OR (hanh han)) cua dung cong dan than cao*.