diff --git a/oml/item/api.py b/oml/item/api.py
index 4bf1fb6..44162b2 100644
--- a/oml/item/api.py
+++ b/oml/item/api.py
@@ -217,8 +217,7 @@ actions.register(autocomplete)
 def findMetadata(data):
     '''
         takes {
-            key: string,
-            value: string
+            key: value,
         }
         returns {
             items: [{
@@ -231,20 +230,21 @@ def findMetadata(data):
         'items': []
     }
     logger.debug('findMetadata %s', data)
-    if data['key'] == 'isbn':
-        r = meta.lookup(data['key'], data['value'])
+    key = ','.join(sorted(data))
+    if key == 'isbn':
+        r = meta.lookup(key, data[key])
         if r:
             response['items'].append(r)
-    elif data['key'] == 'title':
-        r = meta.find(data['value'])
-        for isbn in meta.find(data['value']):
+    elif key == 'author,title':
+        value = ' '.join(data.values())
+        for isbn in meta.find(value):
             r = meta.lookup('isbn', isbn)
             if r:
                 response['items'].append(r)
-    elif data['key'] == 'id':
+    elif key == 'id':
         import user.models
         items = {}
-        for m in user.models.Metadata.query.filter_by(item_id=data['value']):
+        for m in user.models.Metadata.query.filter_by(item_id=data[key]):
             if m.data_hash not in items:
                 items[m.data_hash] = m.data
                 items[m.data_hash]['users'] = [m.user_id]