Perhaps you should try some spelling variations:
hoc thieu » toc thieu, hoc hien
dang cong » dung cong
anh dang » anh dong, anh dung, anh bang
dang cua » dung cua, dong cua, mang cua
cua dang » cua cong, cua ban
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: ((hoc thieu) or (theo tieu)) xanh - anh dang cua dang cong san ((toan cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (theo tieu)) xanh - anh dang cua dang cong san ((toan cao) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (theo tieu)) xanh - anh dang cua dang cong san ((toan cao) or (toan ban))*.