Fix backup list

Author: João Jandre

server/src/main/java/org/apache/cloudstack/backup/BackupManagerImpl.java

@@ -973,7 +973,7 @@ public Pair<List<Backup>, Integer> listBackups(final ListBackupsCmd cmd) {
         sb.and("backupOfferingId", sb.entity().getBackupOfferingId(), SearchCriteria.Op.EQ);
 
         if (keyword != null) {
-            sb.or().op("keywordName", sb.entity().getName(), SearchCriteria.Op.LIKE);
+            sb.and().op("keywordName", sb.entity().getName(), SearchCriteria.Op.LIKE);
             SearchBuilder<VMInstanceVO> vmSearch = vmInstanceDao.createSearchBuilder();
             sb.join("vmSearch", vmSearch, sb.entity().getVmId(), vmSearch.entity().getId(), JoinBuilder.JoinType.INNER);
             sb.or("vmSearch", "keywordVmName", vmSearch.entity().getHostName(), SearchCriteria.Op.LIKE);