Perhaps you should try some spelling variations:
hien hanh » dieu hanh
hang luan » tang luan, dung luan
van duong » van dong, van dung, hai duong
van phong » van dong, hai phong
cuong ban » cuong bang, cuong bai, tuong ban
ban than » ban thanh, van thanh, ban hang
than cau » toan cau, phan cau, than cap

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 - hang luan ((van duong) or (van phong)) cuong ban than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien hanh - hang luan ((van duong) OR (van phong)) cuong ban than cau.
• Adding a wildcard symbol may retrieve word variants: hoc hien hanh - hang luan ((van duong) or (van phong)) cuong ban than cau*.