help with views 2 working pro-grammatically sorting & filters not working as expected

Hi,

Im using custom module to handle this view.I did many try(find inside the code) but nothing works and also sorting too. Only arguments code works charm. Guide me to right way / help me with solutions.

and here is the exported view link http://pastebin.com/YzzzLEbW

    function custom_module(){
        views_include("view");
        $view = new view();
        $display = 'default';
        $display_id = 'page_1';
        $view = views_get_view('master');

        // ensure view exists
        if (!$view)
        print("Not real");
        // set display_id
        $view->set_display('page');
        $view->set_use_ajax(true);
        $view->set_use_pager('mini');
        $view->pager['items_per_page'] = 5;
                $handler->override_option('path', 'ajaxlisting');
                 $view->is_cacheable = FALSE;

         //Try 1 for filtering 
        $view->init_handlers();
        $handler = $view->new_display('default', 'Defaults', 'default');

        $handler->override_option('use_pager', '1');

         $new_view_filters = $view->display_handler->get_option('filters');
         if (empty($new_view_filters)) {
            $new_view_filters = array();
           }
              $new_view_filters['field_internationalcode_value'] = array(
               'id' => 'field_internationalcode_value',
             'table' => 'node_data_field_internationalcode',
              'field' => 'field_internationalcode_value',
              'operator' => 'or',
             'value' => 'US',
               'group' => '0',
             'exposed' => FALSE,
               'relationship' => 'none',
               );
         $view_overrides = array();
         $view_overrides['filters'] = $new_view_filters;
          foreach ($view_overrides as $option => $definition) {
               $view->display_handler->override_option($option, $definition);
           }

        //Try 1 filter ends & Try 2 filter starts 


        $view->display_handler->options['handlers']['filters']['field_internationalcode_value']->value = 'US';

             //Try 2 filter ends & Try 1 sorting starts

                $view->display['default']->handler- >options['sorts']['field_internationalcode_value']['order'] = 'DESC';

            //Try 1 sorting ends & try 2 sorting starts

        $sort['field_volatility_value']['order'] = 'ASC';
         $view->display_handler->set_option('sorts', $sort);

           // Try 2 sorting ends & Arguments Works good below

        if (is_object($view)) {
        if (is_array($args)) {
            //$view->set_arguments($args);
             $view->set_arguments(array($filt[0],$filt[1]));
            $view->build($display_id);
        }

     // try 3 for filtering starts here

        if (is_string($display_id)) {
            $view->set_display($display_id);
            $filter = $view->get_item($display_id, 'filter', 'field_internationalcode_value');
            $filter['value'] = 'US';
            $view->set_item($display_id, 'filter', 'field_internationalcode_value', $filter);
        } else {
            $view->init_display();
        }
     // try 3 ends here

        $view->pre_execute();
        $final = $view->execute($display_id);
        $output = $view->render();
        // Clean up after processing
        $output = $view->post_execute();
        }


        return $view->result;
           }

Im pulling everything but yet no solution

help me with this,

Thanxs,
Gobi.