Perhaps you should try some spelling variations:
chieu manh » chieu xanh, chu manh, chieu sach
hieu manh » chieu xanh, hieu nganh, dieu hanh
cong tang » cong thang, cong tan, cong lang
anh tang » anh bang, anh dang, anh nang
kha nang » phap nang, ky nang, ki nang
tang van » dang van, hoang van, trong van
va hang » van hang, va nang, va lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu manh) or (hieu manh)) - anh tang ((va hang) or (kha nang)) cong tang van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu manh) OR (hieu manh)) - anh tang ((va hang) OR (kha nang)) cong tang van ban.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu manh) or (hieu manh)) - anh tang ((va hang) or (kha nang)) cong tang van ban*.