Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
hien hanh » dieu hanh
van thang » van thanh, van khang, van than
van hang » van khang, van hoang, ban hang
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan tap » toan 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 hien hanh - hanh trang ((van thang) or (van hang)) cong tac toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien hanh - hanh trang ((van thang) OR (van hang)) cong tac toan tap.
• Adding a wildcard symbol may retrieve word variants: hoc hien hanh - hanh trang ((van thang) or (van hang)) cong tac toan tap*.