Perhaps you should try some spelling variations:
thi chieu » thi chien, thi hieu, theo chieu
tranh cua » doanh cua, manh cua
dang cong » dung cong
doc hieu » toc thieu, hoc thieu, hoc hien
cua dang » cua cong, cua ban
cong san » cong tac
san van » tan van, luan van, tran van

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc hieu) or (thi chieu)) xanh - canh tranh cua dang cong san van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (thi chieu)) xanh - canh tranh cua dang cong san van ban.
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) or (thi chieu)) xanh - canh tranh cua dang cong san van ban*.