Angular Sanitize

HTML

<script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.2.1/angular-sanitize.js"></script>
<link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/foundation/5.2.1/css/foundation.min.css">
<div ng-app="mySceApp">
    <div ng-controller="PhoneListCtrl">
        <ul>
            <li ng-repeat="item in faq | pesquisar:'usua'"> 
                <span ng-bind-html="item.Modulo"></span>
                <b ng-bind-html="item.Pergunta"></b>
            </li>
        </ul>
    </div>
</div>

JavaScript

(function(window){
	window.htmlentities = {
		encode : function(str) {
			var buf = [];
			
			for (var i=str.length-1;i>=0;i--) {
				buf.unshift(['&#', str[i].charCodeAt(), ';'].join(''));
			}
			
			return buf.join('');
		},
		
		decode : function(str) {
			return str.replace(/&#(\d+);/g, function(match, dec) {
				return String.fromCharCode(dec);
			});
		}
	};
})(window);

function accentFold(inStr) {
	return inStr.replace(/([àáâãäå])|([ç])|([èéêë])|([ìíîï])|([ñ])|([òóôõöø])|([ß])|([ùúûü])|([ÿ])|([æ])/g, function(str,a,c,e,i,n,o,s,u,y,ae) { if(a) return 'a'; else if(c) return 'c'; else if(e) return 'e'; else if(i) return 'i'; else if(n) return 'n'; else if(o) return 'o'; else if(s) return 's'; else if(u) return 'u'; else if(y) return 'y'; else if(ae) return 'ae'; });
}

var mySceApp = angular.module('mySceApp', ['ngSanitize']);

mySceApp.filter('pesquisar', function($sce) {    
    return function(items, term){
        var term = accentFold(term.toLowerCase());
				
        var arrayToReturn = [];        
        angular.forEach(items, function(item) {
					var modulo = item.Modulo.toLowerCase();
					var pergunta = accentFold(htmlentities.decode($sce.getTrustedHtml(item.Pergunta)).toLowerCase());

					if(modulo.includes(term) || pergunta.includes(term))
						arrayToReturn.push(item);
				});
        
        return arrayToReturn;
    };
});

mySceApp.controller("PhoneListCtrl", function PhoneListCtrl($scope, $sce) {
$scope.faq = [
            {
                "Modulo": "ACO",
                "Pergunta": "Liberar acesso a menus por usu&aacute;rios",
                "Resposta": "Acesso >> usu&aacute;rio >> acesso a menus >> pesquise o usu&aacute;rio >> pesquisa >> marcar os m&oacute;dulos >> aplicar configura&ccedil;&otilde;es"
            },
            {
                "Modulo": "BAS",
                "Pergunta": "Usu&aacute;rio n&atilde;o recebe e-mail de pend&ecirc;ncia",
                "Resposta": "O usu&aacute;rio s&oacute; pode receber e-mail do...