Get text from multiple cells of another sheet into 1 cell

I know how to get text from 1 cell on another sheet into another sheets' cell.But I can't seem to find a way to get text from 2 cells of another sheet into another sheets' cell.

I use the current formula to get 1 text from 1 cell:

=HLOOKUP($C$1+7;Rooster!$1:37;5;FALSE)

The cell on the other sheet (Rooster) are below each other.

An example sheet (editable):

https://docs.google.com/spreadsheets/d/1-Eyb9C-O9d-Fjd5jbdGb1T23lWRyCDu0tUY9dGC63UU/edit