What's up with the Feedly search function?

Hi Feedly,

Love your tool, but I've found the search function to behaving badly lately. Sometimes it just doesn't work. I search for keywords that I know are featuring in articles (because I can see them) and it comes up with no results. My client and I use this function to drill down into our content...so a quick fix would be great.

Regards,
Matt Kendall