changing text in class cl_crm_bt_t_searchview_impl

Hi gurus, I am trying to change the text-001 and text-002 in method EH_ONSEARCH at CL_CRM_BT_T_SEARCHVIEW_IMPL.

I've amplied the component, but I could do it, because, Do you know any nice way to change these texts ..

Thanks in advance.

Regards