Perhaps you should try some spelling variations:
chong cong » cong cong, cuong cong, phong cong
thong cong » trong cong, tong cong, thong thong
hieu manh » chieu xanh, hieu nganh, dieu hanh
hanh luat » nganh luat, hang luan, hanh lam
hoc hieu » hoc thieu, hoc hien, doc hieu
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 hieu manh - 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 hieu manh - hanh luat van ((chong cong) OR (thong cong)) dan ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - hanh luat van ((chong cong) or (thong cong)) dan ((toan cau) or (toan ban))*.