So check this quick tour on how to find information on this blog, your answer is likely not that far away...
This feature is part of the standard Scarlett template design. It works, but it does not return always the most relevant results.
I have included a better search box on the right column, primarily to retrieve some comments that often contain precious information on how we sorted a problem before. This box actually searches not only the comments but the entire blog, so that's the one I'd recommend.
For more label-based filtering like above, there's the tag cloud on the right.
Related labels are shown at the end of each post if you want to read more on the same topic.
Finally a list of related article is generated as well.
Enjoy your visit!