mistake I did

gistfile1.js

// already loaded jQuery.js
(function(){

	function searchHoge(name, list){
		var reg = new RegExp('^'+name+'$','m');
		return list.filter(function(i, v){
			return reg.test($(v).text()); // v -> TopLevelHTMLObject
		});
	}

	var Search = {
		search : function(name, list) {
			var reg = new RegExp('^'+name+'$','m');
			return list.filter(function(i, v){
				return reg.test($(v).text()); // v -> list[i]
			});
		}
		factory : function(form_view, submit_view, list_view) {
			var self = this;
			var getTextsFromInput = function(){
				return $(form_view).val().replace(/^\s+|\s+$/,'').split(/\s+/);
			}
			// Effective
			$(submit_view).click(function(){
				var texts = getTextsFromInput();
				if (texts.length > 0){
					self.search(texts[0], $(list_view));
				}
			});

			// Not Expected
			$(from_view).keydown(function(e){
				var texts = getTextsFromInput();
				if (e.keyCode == 13) {
					searchHoge(texts[0], $(list_view));
				}
			});
		}
	};

	window.Search = Search;
})();