This feature was available, it is not anymore : why? is there a plugin for this?

I would like the Confluence search to work like leading-edge search engines, such as Google, which are already doing this. This will contribute to a much better user experience with the search, it will improve "findability".

Here is a good example. A commonly-misspelled word in my wiki is "Xcelsius". Instead of displaying no search results if someone types, for example, "Excelsius" instead at the top of the search results page, say "Did You Mean Xcelsius?" and display those search results.