Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
cua nhung » va nhung
hien hanh » dieu hanh
anh tang » anh bang, anh dang, anh sang
anh nang » ganh nang, anh bang, anh dang
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan ban » van 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 - ((anh tang) or (anh nang)) cua nhung cong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien hanh - ((anh tang) OR (anh nang)) cua nhung cong dan toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc hien hanh - ((anh tang) or (anh nang)) cua nhung cong dan toan ban*.