We have reviewed WordPress plugins that help return better search results for your WordPress site like the Relevanssi plugin. But how about helping your users fix their spelling in the search box before they hit “submit” – like Google or major search engines do?
We just noticed this relatively new plugin called “Proper Spell.” We haven’t tried it yet but it’s supposed to auto suggest the correct spelling while the user is typing in something into your search box. It requires a bit of intermediate knowledge as you’ll need to plugin a code
Get it: Proper Spell