Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hoc trieu » hoc thieu, hoc tieu, hoc dieu
cua thong » cua thuong, cua khong, suat thong
cua tong » cua cong, cua dong, cua nong
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
toan cau » toan cao, toan ban, toan tap

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 trieu tinh - hanh trinh ((cua thong) OR (cua tong)) ((cong tan) OR (cong san)) toan cau~.
• Adding a wildcard symbol may retrieve word variants: hoc trieu tinh - hanh trinh ((cua thong) or (cua tong)) ((cong tan) or (cong san)) toan cau*.