Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
nhung dong » nhung don, nhung dung, nhung bong
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
tang luan » dung luan
anh tang » anh bang, anh dang, anh nang
tren tau » tren thuc, tren dat, tren thi
tren may » tiet may

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: hoc thieu xanh - anh tang luan ((nhung dong) OR (nhung cong)) tai ((tren tau) OR (tren may))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - anh tang luan ((nhung dong) OR (nhung cong)) tai ((tren tau) or (tren may))~".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - anh tang luan ((nhung dong) OR (nhung cong)) tai ((tren tau) or (tren may))*.