Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
tranh luan » trinh luan, tang luan, tranh cua
doanh luan » doanh nhan
hoc thieu » toc thieu, hoc hien
ung huong » dung huong, dung thuong, dung phuong
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap

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 ((((tranh luan) OR (doanh luan))) or (trinh luat)) ung huong dan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh ((((tranh luan) OR (doanh luan))) OR (trinh luat)) ung huong dan than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - hanh ((((tranh luan) OR (doanh luan))) or (trinh luat)) ung huong dan than cau".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh ((((tranh luan) OR (doanh luan))) or (trinh luat)) ung huong dan than cau*.