Oracle Corp.’s fiscal third-quarter results fell shy of expectations. The business software bellwether attributed its revenue decline to a lackluster performance by its expanding sales force. Revenue from new software licenses and online or cloud subscriptions fell 2 percent year-over-year to $2.3 billion. It had forecast an increase of 3 to 13 percent. Oracle has agreed to pay $2 billion for Acme Packet, a Bedford company that makes equipment for telecommunications companies.