Perhaps you should try some spelling variations:
hien hanh » dieu hanh
lanh manh » lanh tranh, lan anh, van manh
cua nhung » va nhung
cua hang » cua dang, cua cong, cua ban
cong dan » cong san, cong tan, huong dan
dan hanh » dang hanh, dan khanh, dan thanh
hanh tu » anh tu, danh 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 - lanh manh ((cua hang) or (cua nhung)) cong dan hanh tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien hanh - lanh manh ((cua hang) OR (cua nhung)) cong dan hanh tu.
• Adding a wildcard symbol may retrieve word variants: hoc hien hanh - lanh manh ((cua hang) or (cua nhung)) cong dan hanh tu*.