I believe everything Filipe said is correct. If you're still having trouble, it might be worth looking at a raw Solr query with debugQuery=true on the URL to see if that gives
you any additional information. I believe that sometimes multi-word synonyms can cause weird results because of the way they interact with tokenization.
From: Nathan Tallman [firstname.lastname@example.org]
Sent: Tuesday, October 30, 2012 11:00 AM
Subject: [VuFind-Tech] Solr synonyms.txt Question
If I add the following line to solr/biblio/conf/synonyms.txt:
HUC,"Hebrew Union College"
Will VuFind return results including "Hebrew Union College" when a user searches for HUC? This is my understanding of synonyms.txt, but I'm not getting the expected behavior after restarting. So, maybe I'm wrong!