diff --git a/C4/Acquisition.pm b/C4/Acquisition.pm
index c904c43387..1bf41cbf65 100644
--- a/C4/Acquisition.pm
+++ b/C4/Acquisition.pm
@@ -2142,10 +2142,19 @@ params:
   title
   author
   name
+  isbn
+  ean
   from_placed_on
   to_placed_on
   basket                  - search both basket name and number
   booksellerinvoicenumber 
+  basketgroupname
+  budget
+  orderstatus (note that orderstatus '' will retrieve orders
+               of any status except cancelled)
+  biblionumber
+  get_canceled_order (if set to a true value, cancelled orders will
+                      be included)
 
 returns:
     $order_loop is a list of hashrefs that each look like this: