At my company, we've been beating our heads to the wall[0] in getting multi-term synonyms to work correctly in SOLR. e.g.

   fruit extractor => fruit juicer, citrus juicer 

Does anyone experienced enough have a clue if SOLR 5 can help with that?

[0] - http://opensourceconnections.com/blog/2013/10/27/why-is-mult...