Perhaps you should try some spelling variations:
hanh truong » hanh trong, anh truong, manh truong
theo chieu » theo tieu, ho chieu, theo chu
truong cua » truong ca, truong quan, truong cao
bang cong » dang cong, bang song, hang cong
doc hieu » toc thieu, hoc thieu, hoc hien
cua bang » chua bang, cua ban, cua dang
cong san » cong tac
toan cao » toan tap
toan ban » van ban

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 (doc hieu)) sang - hanh truong cua bang cong san ((toan cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (doc hieu)) sang - hanh truong cua bang cong san ((toan cao) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (doc hieu)) sang - hanh truong cua bang cong san ((toan cao) or (toan ban))*.