diff --git a/ko-cart/index.html b/ko-cart/index.html
index 6e1ed8e..5bcfc65 100644
--- a/ko-cart/index.html
+++ b/ko-cart/index.html
@@ -8,6 +8,7 @@
   <body>
     <h1>Catalog</h1>
 
+    <h2>Insert</h2>
     <form class="form-horizontal" role="form" data-bind="with:newProduct">
       <div class="form-group">
         <div class="col-sm-12">
@@ -52,6 +53,19 @@
       </div>
     </form>
 
+    <h2>Search</h2>
+    <div class="input-group">
+      <span class="input-group-addon">
+        <i class="glyphicon glyphicon-search"></i> Search</span
+      >
+      <input
+        type="text"
+        class="form-control"
+        data-bind="textInput: searchTerm"
+      />
+    </div>
+
+    <h2>Products</h2>
     <strong>Items:</strong>
     <span data-bind="text:catalog().length"></span>
     <table class="table">
diff --git a/ko-cart/js/viewmodel.js b/ko-cart/js/viewmodel.js
index 0fed83c..bc5c32f 100644
--- a/ko-cart/js/viewmodel.js
+++ b/ko-cart/js/viewmodel.js
@@ -17,18 +17,41 @@ var vm = (function () {
   var addProduct = function (context) {
     var id = new Date().valueOf(); // random id from time
 
-    var product = Product(
-      id,
-      context.name(),
-      context.price(),
-      context.stock()
-    );
+    var product = Product(id, context.name(), context.price(), context.stock());
     catalog.push(product);
     clearNewProduct();
   };
 
+  var searchTerm = ko.observable("");
+  var filteredCatalog = ko.computed(function () {
+    // if catalog is empty return empty array
+    if (!catalog()) {
+      return [];
+    }
+    var filter = searchTerm().toLowerCase();
+    // if filter is empty return all the catalog
+    if (!filter) {
+      return catalog();
+    }
+    //filter data
+    var filtered = ko.utils.arrayFilter(catalog(), function (item) {
+      var fields = ["name"]; // we choose to filter by name
+      var i = fields.length;
+      while (i--) {
+        var prop = fields[i];
+        var strProp = ko.unwrap(item[prop]).toLocaleLowerCase();
+        if (strProp.indexOf(filter) !== -1) {
+          return true;
+        }
+      }
+      return false;
+    });
+    return filtered;
+  });
+
   return {
-    catalog: catalog,
+    searchTerm: searchTerm,
+    catalog: filteredCatalog,
     newProduct: newProduct,
     addProduct: addProduct,
   };
