Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
luan doan » luan hoan, quan doan, luat doanh
lang cong » dang cong, bang cong, hang cong
dung cong » dung trong
doan van » doan va, hoang van, luan van
van phan » van phong, van thanh, luan phan

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 xanh - luan doan van ((lang cong) or (dung cong)) van phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - luan doan van ((lang cong) OR (dung cong)) van phan tu*.