Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh trinh » canh tranh, hanh chinh
luat thong » luat thuong, suat thong, xuat thong
cong thanh » dong thanh, cong trinh, truong thanh
hoc thieu » toc thieu, hoc hien
cong tan » cong tac, cong san, cong ty

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - hanh trinh luat thong ((cong tan) OR (cong thanh)) phan tu~".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh trinh luat thong ((cong tan) OR (cong thanh)) phan tu*.