search/summary

Hello everybody

I’m looking for the possibiity how to change informations in “summary” column in search funktion. I’m not sure if it’s called “summary” because it is “Zusamenfassung” in german.
What I mean is: when I search using the magnifing glass in top-right corner, I get some results with column “summary” and I want to change information included in this column.
How I can do that? is it possible to change it in “studio”. how? I spend few hours looking for that.

Thank you in advance
deszczur