Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh luan » trinh luat, trinh quan, trinh han
luan chung » luan chinh
chung cong » nhung cong, chong cong, phung cong
hoc thieu » toc thieu, hoc hien
doc hieu » toc thieu, hoc hien
cong san » cong tac
toan cau » toan cao, toan tap, toan tai
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: ((doc hieu) or (hoc thieu)) manh - hanh trinh luan chung cong san ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (hoc thieu)) manh - hanh trinh luan chung cong san ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) or (hoc thieu)) manh - hanh trinh luan chung cong san ((toan cau) or (toan ban))*.