Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
doanh cua » doanh luan
trong van » trong cac
tang cua » mang cua, hang cua, tang luan
song van » hoang van, duong van, dang van
tuan cao » toan cao, juan cao, quang cao

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 - hanh ((doanh cua) OR (tang cua)) nhung ((song van) OR (trong van)) tuan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - hanh ((doanh cua) or (tang cua)) nhung ((song van) OR (trong van)) tuan cao~".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh ((doanh cua) or (tang cua)) nhung ((song van) OR (trong van)) tuan cao*.