How to get more then 100 results with PHP ajax call?

Question

I use a jQuery selectize() with ajax call. The selectize() and the ajax call with PHP SELECT works fine.

The only problem is, ajax success callback is showing a max of 100 results. When the PHP SELECT has more than 100 results the selectize() has no results.

Is there a way to use all of the results? maxResults: doesn't work here. :(