Increase the number of saved searched words

By default, Libreoffice saves the 10 previous searched words: That’s it, if you search for words after words in a document using Ctrl+F, you can see by clicking on the arrow next to the search input the 10 last searched words.

How is it possible to store more words whereby you can see for example the 20 last searched words?

Thanks a lot in advance!

EDIT: Well, apparently, this number is a constant, embedded in the source code.
I’ve found where this constant is:

in svx/source/tbxctrls/tbunosearchcontrollers.cxx
at the beginning of the file you’ve got:

static const sal_Int32      REMEMBER_SIZE = 10;

So, if you want to customize, you need to rebuild LibreOffice…