Fix an Apache Solr query

We use Apache Solr as the backend for the search service in our ecommerce website. We noticed, however, that try as we might, we are NOT able to get SOLR to use the pf or pf2 parameters we specify even though the query is an "OR" based one. We need someone to look into the actual query we send to Solr and figure out why pf and pf2 are probably not being used during the query execution.