Perhaps you should try some spelling variations:
thieu lang » hieu lang, thieu khang, thieu quang
hanh trinh » canh tranh, hanh chinh
hoc thieu » toc thieu, hoc hien
luat dung » suat dung, luat chung, thuat dung
cong tac » cong ty
cong tan » cong san, cong thanh, cong ty
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.

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu lang - hanh trinh luat dung ((cong tac) OR (cong tan)) ((toan cau) OR (toan ban))~.
• Adding a wildcard symbol may retrieve word variants: hoc thieu lang - hanh trinh luat dung ((cong tac) or (cong tan)) ((toan cau) or (toan ban))*.