Hello I think I have found a little bug, but I am not sure of it. in C4/Search.pm (sub _build_weighted_query), I found this : 826 $weighted_query .= " $index,ext,r1=\"$operand\""; # exact index 827 #$weighted_query .= " or (title-sort-az=0 or $index,startswithnt,st-word,r3=$operand #)"; 828 $weighted_query .= " or $index,phr,r3=\"$operand\""; # phrase index 829 $weighted_query .= 830 " or $index,rt,wrdl,r3=\"$operand\""; # word list index So Word list index is on the same plane as Phrase index. I suppose if we define Phrase index as r2, the weighting would be more accurate? I don't know how zebra is working internally, so could somebody confirm please ? Regards, M. Saby Rennes 2 University -- Mathieu Saby Service d'Informatique Documentaire Service Commun de Documentation Université Rennes 2 Téléphone : 02 99 14 12 65 Courriel : mathieu.saby@univ-rennes2.fr