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
san nhan » van nhan, ban nhan, sat nhan
nhan tai » hang tai, van tai, toan 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 nhan 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 nhan tai*.