Google has not generated any sitelinks for your site. Sitelinks are completely automated, and we show them only if we think they'll be useful to the user. If your site's structure doesn't allow our algorithms to find good sitelinks, or we don't think that the sitelinks are relevant to the user's query, we won't show them. However, we are always working to improve how we find and display sitelinks.
Webmaster Help Center - How do you compile the list of links shown below some search results?
تضاف هذه الروابط بطريقة تلقائيه وما هذه الأداه الا اختيار فقط للروابط المراد ظهروها (بعد ان يضيفها جوجل بالأساس) وعلى ما اعتقد ان هذه الروابط تضاف لمن له pg5 وما فوق .. هذا على حد علمي