Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
tang luat » nang suat, hang luan, tong luan
tang luan » dung luan
cong san » cong tac
han tap » toan tap, nhan tai, nhan tao
han tai » hang tai, nhan tai, van tai

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 ((tang luat) OR (tang luan)) trong cong san ((han tap) or (han tai))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh ((tang luat) OR (tang luan)) trong cong san ((han tap) OR (han tai))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - hanh ((tang luat) OR (tang luan)) trong cong san ((han tap) or (han tai))*".