Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
tranh van » tran van, trinh van, thanh van
van nhung » van nhuong, va nhung, van hung
dan than » dan chan, ban than, van than

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 - canh tranh van nhung cong ((dan than) or (dan gian)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - canh tranh van nhung cong ((dan than) OR (dan gian)) tap.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - canh tranh van nhung cong ((dan than) or (dan gian)) tap*.