This is the call:
[!AjaxSearch? &AS_showResults=`0` &AS_landing=`54` &addJscript=`0` &ajaxSearch=`1` &language=`english` &parents=`48` &depth=`1`!]
Few questions ...
Which mode do you want use ? ajax mode or non-ajax mode ?
With &ajaxSearch=`1` which is the default value, you will use the ajax mode. In this case the parameters :
&AS_showResults=`0` (don’t display the results under the snippet call) and &AS_landing=`54` (display the results of the non-ajax mode search on page #54) are useless
&addJscript=`0` means that you have added the link to the mootools 1.11 library by yourself in your template. is it right ?
The default value of the addJscript parameter is set to 1 and link your page with the default MODx mootools library.
So try first to run the following snippet call :
[!AjaxSearch? &parents=`48` &depth=`1` &language=`english`!]
and let me know the results