i need to know how the user found me?

I join to the adwords system of google
i need to know how the user found me?
for example:
if my adword was "film" and some user search the words "multi film" -
they found me but i dont know that they search the combination of words
multi film.
is there a way to know that ("multi film")?


btw
i send 3 Q about it to google and no one answer me !!!!