Perhaps you should try some spelling variations:
chon hien » chon chien, chong thien, chinh hien
hien hanh » dieu hanh
hanh dung » thanh dung, anh dung, hanh dong
hang cong » dang cong, hang nong, thanh cong
bang cong » dang cong, bang song, dung cong
dung cua » dung luan, dung cho
dan chan » dan gian, dan ca, van chat
chan cau » phan cau, can cau, chinh cau

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: chon hien hanh - hanh dung cua ((hang cong) or (bang cong)) dan chan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: chon hien hanh - hanh dung cua ((hang cong) OR (bang cong)) dan chan cau.
• Adding a wildcard symbol may retrieve word variants: chon hien hanh - hanh dung cua ((hang cong) or (bang cong)) dan chan cau*.