Distributed Search doesn't response the result set

[Scott Zhang]

Hi. All.
   I am trying to use solr to search over 2 lucene indexes.  I am following
the solr tutorial and test the distributed search example. It works.
   Then I am using my own lucene indexes. Search in each solr instance works
and return the expected result. But when I do distributed search using
"shards". It only return the "numFound"=14. But the result contain nothing.
    Don't know why. Can Any one help? Thanks.