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
hanh dung » thanh dung, anh dung, hanh dong
tong cong » trong cong, cong cong, dung cong
dan than » dan chan, ban than, van than
than tap » toan tap, han tap, phan tap

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 dung luan ((nhung cong) or (tong cong)) dan than tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh dung luan ((nhung cong) OR (tong cong)) dan than tap*.