Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
cua khong » hua khong, cua phuong, cua thuong
theo kha » theo phap, thao khoa, theo chu
kha nang » phap nang, ky nang, ki nang
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
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: theo kha nang - hanh tranh ((suat thong) OR (cua khong)) cong tac toan cau~.
• Adding a wildcard symbol may retrieve word variants: theo kha nang - hanh tranh ((suat thong) or (cua khong)) cong tac toan cau*.