I modified report to the following:
IF (
({Command_DATE} in DateTime (2013, 07, 01, 00, 00, 00) to DateTime (2013, 12, 31, 00, 00, 00) AND {Command_ORDER.DESCRIPTION} like "XXX*" )
OR ({Command_CLASSES.DATE} in DateTime (2013, 07, 01, 00, 00, 00) to DateTime (2013, 12, 31, 00, 00, 00) and...