Tag suggest feature only queries first 30 tags

#set($query = "select distinct list from BaseObject as obj, DBStringListProperty as prop join prop.list list  where obj.className = '${classname}' and obj.id = prop.id.id and prop.id.name = '${fieldname}'")    
#set($queryResult = $xwiki.search($query.toString(), 30, 0))    
    #set($results = $queryResult.toArray())
    <?xml version="1.0" encoding="UTF-8"?>
    <results type="3">
    #foreach($res in $results)
      #set($list = $p.getListFromString($res, $sep, false))
      #set($list = $list.toArray())
      #foreach($word in $list)
        #if($word.toLowerCase().indexOf($input) >= 0)
          <rs id="$velocityCount" info="">$word</rs>
        #end
      #end
    #end