Perhaps you should try some spelling variations:
doi chieu » doi chi, ho chieu, mot chieu
tranh cua » doanh cua, manh cua
doc hieu » toc thieu, hoc thieu, hoc hien
cua dang » cua cong, cua ban
cong van » cong vang, song van, cong tan
cong san » cong tac
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: ((doi chieu) or (doc hieu)) sang - canh tranh cua dang ((cong van) or (cong san)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (doc hieu)) sang - canh tranh cua dang ((cong van) OR (cong san)) toan cao.
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (doc hieu)) sang - canh tranh cua dang ((cong van) or (cong san)) toan cao*.