It’s hard to explain this problem with word, maybe this picture can clear you out for what I want.
So how can I make this happen?
I understand from your drawing that you want to have 2 columns of text on one page. If so please do:
Insert > Section > tab: Columns > select the number of columns you want to have and set all the way you want to have it.
I recommend addtionally to have a look at the free guides which you can download from http://www.libreoffice.org/get-help/documentation/
Thank you very much for the answer, yeah it’s working. 
If you wish to have two pages on one sheet, you can also change the complete page into two halves using Page Styles. Format > Page > Column 2. This would work on multiple page documents.
I agree that the free guides are very useful in explaining this type of problem…
Thank you very much for the answer, yeah I should find it in Google first, but I can’t find any suitable keyword that get me straight to the answer. But thanks anyway.