Try closing LW for some minutes & then reconnecting. That can sometimes connect you to different peers.

But if you're having problem searching, then try varying your search techniques using different search type & shortening the search terms. You don't need to enter the entire details for a search. Just the main words. eg: Humpty dumpty had a great fall ... instead type in humpty dumpty or dumpty - fall (I hope that doesn't sound too vague!)