Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
hoc thien » hoc hien, hoc thieu, hoc thiet
hanh luat » nganh luat, hang luan, hanh lam
van duong » van dong, van dung, van phong
luat van » luan van, luat dan, luat va
cong tac » cong ty
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thien thanh - hanh luat van duong ((cong san) or (cong tac)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien thanh - hanh luat van duong ((cong san) OR (cong tac)) toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc thien thanh - hanh luat van duong ((cong san) or (cong tac)) toan cau*.