Perhaps you should try some spelling variations:
chong cong » cong cong, cuong cong, phong cong
thieu xanh » chieu xanh, hieu manh, thien anh
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
hanh luat » nganh luat, hang luan, hanh lam
luat van » luan van, luat dan, luat va
toan cau » toan cao, toan tap, toan tai
toan ban » van ban

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