French phrase
Ça n'explique pas ~.
Meaning
That alone doesn't explain ___.
When to use it
The available fact is not enough to account for something. It stresses that further information is needed to understand the situation.
Example dialogue
Pourquoi a-t-il fait ça ?
Why did he do that?
Ça n'explique pas son comportement.
That alone doesn't explain his behavior.