Searching the website

I've been looking for open source fuzzy search engines... All I found were hints on the thousands and thousands of engines that are assumed to be out there, and some real engines that didn't fit.

It's a typo3 based website, but that shouldn't be a problem, should it? I was looking for something that would do fuzzy search and perhaps a suggestion for another spelling.
If anybody knows something like this, I'd be happy if they could help me. Thank you!

(and please excuse my bad english skills)

Thank you very much :-)

Do you know anything else that would not be based on typo3?

mnoGoSearch is not based on typo3.
mnoGoSearch web site: http://www.mnogosearch.org

Another option is DataparkSearch.
DataparkSearch web site: http://www.dataparksearch.org

A very fast full-text search engine is Sphinx. Fuzzy search is a planned feature.
Sphinx web site: http://www.sphinxsearch.com

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