Codeigniter Pagination กลับไปได้ครับแต่กดคลับ บัคลองทำดูหลายๆครั้งแล้วแก้ไขไม่ได้สักที

public function search() {
		if($this->input->post('id')<>"") {
		$id = $this->input->post('id');
		} else {
			$id = $this->uri->segment(4);
		}
 		
 		$keyword = $this->input->post('keyword');
		$config = array();
        $config["base_url"] = base_url() . "backend/programs/search/$id/$keyword";
        $config["total_rows"] = $this->programs_model->search_record_count($id,$keyword);
        $config["per_page"] = 1;
        $config["uri_segment"] = 6;
		$choice = $config["total_rows"] / $config["per_page"];
    	$config["num_links"] = round($choice);
 
        $this->pagination->initialize($config);
 
        $page = ($this->uri->segment(6)) ? $this->uri->segment(6) : 0;
        $data["results"] = $this->programs_model->search_fetch_countries($id,$keyword,$config["per_page"], $page);
        $data["links"] = $this->pagination->create_links();
		$data['total_record'] =  $config["total_rows"];
		
		$data['getKeyword'] = $keyword;
		$data['getCategories'] = $this->programs_model->getCategories($id);
 		 
		$this->load->view('backend/programs/manage',$data);
	}

public function getCategories($id) {
		$query = $this->db->query("select categoriesid,categories_name from categories where categoriesid='$id' "); 
         if ($query->num_rows() > 0) {
            foreach ($query->result() as $row) {
                $data[] = $row;
            }
            return $data;
        }
        return false;
	}


/* Search */
	public function search_record_count($id,$keyword) {
		$this->db->like('title',$keyword);
		$this->db->where('categories',$id);
		$this->db->from('article');
		return $this->db->count_all_results();
 
    }
 
    public function search_fetch_countries($id,$keyword, $limit, $start) {
 		$query = $this->db->query("select * from article left join user on post_by=userid where categories='$id' and title like '%$keyword%' order by id desc limit $start, $limit"); 
         if ($query->num_rows() > 0) {
            foreach ($query->result() as $row) {
                $data[] = $row;
            }
            return $data;
        }
        return false;
   }
	/* Search */