What does this means in adwords?

Hello DP,
when I use all matched for a specific keyword. Let’s say I’m using software as keyword.
I do it this way
software
"software"
[software]
in the Keyword Analysis I get this
Note: in this diagnosis the search password protect did not trigger this keyword. However, another keyword in this ad group ( [password protect] ) is triggered by this search.

Thanks

See original post by DaveSEO75