Search the community does not work

Good morning,

it's some weeks that I notice that the searching in 'Search the community' does not works...Please try to enter for exampe 'Internal error SMBEW', some weeks ago I have received 3 or 4 results (such as I receive entering the words in Google), now I find not anything as a response...Identical for other searching, the results does not have no coherence with requirements word...

Please advice.

Thanks a lot and best regards

Massimiliano