Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
hanh tang » hanh trang, anh tang, hanh mang
ho chieu » hoc thieu, doi chieu, mot chieu
tang cua » mang cua, hang cua, tang luan
cua dang » cua cong, cua ban
cong tac » cong ty
tran van » luan van

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 tang cua dang ((cong san) or (cong tac)) tran van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (ho chieu)) sang - hanh tang cua dang ((cong san) OR (cong tac)) tran van.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) OR (ho chieu)) sang - hanh tang cua dang ((cong san) or (cong tac)) tran van".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) OR (ho chieu)) sang - hanh tang cua dang ((cong san) or (cong tac)) tran van*.