Fess supports Fuzzy search based on the Levenshtein Distance or Edit Distance algorithm.
Fuzzy search syntax is word~number, such as Apple~0.8. The number is between 0 and 1, with a value closer to 1 only terms with a higher similarity will be matched.
To search documents which contains words close to Solr, the query is as below.
If no fuzzy value, the default is 0.5.