Perhaps you should try some spelling variations:
hoc thieu » hoc hien
hanh dang » hanh dong, anh dang, hanh dung
dung cong » dung trong
cong phan » cong nhan, cong khan, chong phap
dang van » hoang van, hang va
van dung » van dong, xay dung, tin dung
phan van » pham van, thanh van, luan van

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 (toc thieu)) danh - hanh dang van dung cong phan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (toc thieu)) danh - hanh dang van dung cong phan van ban*.