Can you give an example URL?

I'm guessing this is on Wikipedia (or other Wikimedia site) and may be due to current mismatches between how the Lucene backend matches words and how the front-end matches them in the result highlighting. If so, I believe this should be improved when the next version of the Lucene backend rolls out which has support for doing highlighting itself.

catlow wrote:

Example URLs:

http://en.wikipedia.org/wiki/Special:Search?search=Banach-Steinhaus&fulltext=Search
(first result returned is Stefan Banach, but text is missing because in that article the reference contains an en dash rather than a hyphen)

http://en.wikipedia.org/wiki/Special:Search?search=sniezycowy&fulltext=Search
(two results returned, but text missing because the articles contain Sniezycowy with Polish diacritics)

rainman wrote:

This also happens for stemmed words, transliterations and words in different scripts (variants), and is as noted in #1 due to the mismatch between mediawiki highlighting and backend functionality. It will be solved when we switch highlighting to backend.

Mass close WONTFIX open Lucene Search issues because extension Lucene Search was removed, and replaced by MWSearch. Please set to REOPENED if behaviour still exists with a another component, and update the domain.

Mass REOPEN after discussion with Robert. Domain: Wikimedia/lucene-search-2. Assigned to maintainer.

rainman wrote:

Using our custom snippet-extraction backend on wmf wikis so this doesn't happen any more.