Hi. The carriage return in Access (in Windows OS, really) consists of two characters: CR + LF.
To add them to your data, you would concatenate Chr(13) & Chr(10) into it. However, I am not sure how to apply that idea to your data, because you seem to want to insert the carriage returns in certain places.
If you're using a Long Text field, there may be another option, which is to use the Rich Text Format, so the user can insert the carriage returns easily during data entry.
Just a thought...