Problem with results in search engines

Today I found that the texts from the forum do not appear in the results google. Specifically, I copied short excerpts from texts that have written a lot of members of the forum and I pasted those into the search engine that was not appeared any result from my forum. Then I saw the reports from google analytics and I found that this problem exists from approximately October 15, 2011. The same problem exists in all search engines. What should I do to fix it? (my forum url is http://musictraining.forumgreek.com/)

Hello,

This is a problem with search engines. Not with us.

ok. thanks...