Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
cong thanh » dong thanh, cong trinh, cong tan
hien hanh » dieu hanh
tranh va » tranh van, trang va, trinh va
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
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 tranh va nhung ((((cong dan) or (cong san))) or (cong thanh)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien hanh - hanh tranh va nhung ((((cong dan) OR (cong san))) OR (cong thanh)) toan tap.
• Adding a wildcard symbol may retrieve word variants: hoc hien hanh - hanh tranh va nhung ((((cong dan) or (cong san))) or (cong thanh)) toan tap*.