Hello. I am looking for a phD on High Energy Physics, or Theoretical Physics. Do you know where could I find it??. Thanks a lot

Look to the left of your screen right now for the link to FindAPhD.com - sounds like a good place to start to me.

I did, but there is no one :(

Another question. I am not english, so in some programmes they ask for a TOEFL test. What is that? where I can get my score in a TOEFL test?

TOEFL = Test of English as a Foreign Language. I am not English so I am the wrong person to help you with this, but I googled TOEFL and there are many websites about it. Perhaps you could try a little bit of internet searching for your queries.