Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
dung cong » dung trong
tran van » luan van
lan van » luan van, lang van, tan van
san tan » van tan, san tay, san ten
san van » tan van, luan van, dang 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 xanh - hanh ((tran van) or (lan van)) dung cong ((san tan) or (san van)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh ((tran van) OR (lan van)) dung cong ((san tan) OR (san van)) ban.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh ((tran van) or (lan van)) dung cong ((san tan) or (san van)) ban*.