Perhaps you should try some spelling variations:
hien hanh » dieu hanh
hanh manh » hanh mang, lanh manh, hoang manh
cua nhung » va nhung
cua hang » cua dang, cua cong, cua ban
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
khanh tu » khanh thu, hanh tu, nhanh tu

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 manh ((cua hang) or (cua nhung)) ((cong dan) OR (cong san)) khanh tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien hanh - hanh manh ((cua hang) OR (cua nhung)) ((cong dan) OR (cong san)) khanh tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien hanh - hanh manh ((cua hang) or (cua nhung)) ((cong dan) OR (cong san)) khanh tu".
• Adding a wildcard symbol may retrieve word variants: hoc hien hanh - hanh manh ((cua hang) or (cua nhung)) ((cong dan) OR (cong san)) khanh tu*.