Perhaps you should try some spelling variations:
thieu danh » thien danh, tieu danh, chieu xanh
lang cong » dang cong, hang cong, lang dong
bang cong » dang cong, bang song, hang cong
van phanh » van thanh, van hanh, van khanh
phanh lap » phan lap, thanh lap, hanh lam
van phan » van phong, van thanh, luan phan

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu danh - luan van phan ((lang cong) OR (bang cong)) van phanh lap~.
• Adding a wildcard symbol may retrieve word variants: toc thieu danh - luan van phan ((lang cong) or (bang cong)) van phanh lap*.