I had a similar issue but with swedish characters ääö. If I remember it correctly the problem wasn't about the MultiSearch for me though. I think it hade something to do with wildcard searching. The solution for me was a little dirty but solved the problem. I replaced the åäö with aao in the search term and it solved the problem and gave me results with åäö. Maybe it could help you in some way
Umbraco Searcher with Muli searcher
Hey
I have som trouble with my Searcher.
I have two ways here to get a result.
Version 1. Gives me the correct result.
Version 2, haves trouble with searching for stuff with danish letters (æøå).
Is there a way to use thosse restrictions I have on version 2 on version 1 ?
What fields it should search through, what doctypes, boost som fields etc. ??
I had a similar issue but with swedish characters ääö. If I remember it correctly the problem wasn't about the MultiSearch for me though. I think it hade something to do with wildcard searching. The solution for me was a little dirty but solved the problem. I replaced the åäö with aao in the search term and it solved the problem and gave me results with åäö. Maybe it could help you in some way
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