Not able to create connections to http://dmoz.org/http://www.dmoz.org/World/Ti%e1%ba%bfng_Vi%e1%bb%87t/Th%c3%b4ng_tin_Tham_kh%e1%ba%a3o/Danh_b%e1%ba%a1_v%c3%a0_Th%c3%b4ng_tin/ from your server. The reason might be a firewall, proxy, or http://dmoz.org/http://www.dmoz.org/World/Ti%e1%ba%bfng_Vi%e1%bb%87t/Th%c3%b4ng_tin_Tham_kh%e1%ba%a3o/Danh_b%e1%ba%a1_v%c3%a0_Th%c3%b4ng_tin/ or your web hosting company might be blocking outside connections. Another possibility is a timeout because of slowdown in internet itself.