For the 4th labor Heracles was tasked with capturing and brining back alive the Erymanthian boar. So he chased the boar into the snow until lit grew so tired it gave up running.
For the 5th labor Heracles was tasked with cleaning Augeas Stables so Heracles did this for pay by moving a river into it. When he was done he was not paid and the task was not counted.
For the 6th labor Heracles was tasked with chasing away the hordes of Stymphalin birds. The birds has thick feathers that protected them from arrows. Athena gave Heracles a rattle that made a horrible noise to cause the birds to fly away.
The 7th labor was to capture the Bull that was a gift to Minos from Poseidon. When Minos did not kill the bull it turned into a horrible creature. Heracles travelled to Crete and captured the Bull and took it to King Eurystheus.
For the 8th labor, Heracles had to capture the Mares of King Diomedes. They ate human flesh and Heracles was so disgusted by this he fed Diomedes to his own Mares.
For Heracles 9th labor he was tasked with taking Hippolyte's belt. She was the queen of the amazons. Heracles had asked for it from Hippolyte and told her why he needed it so she gave it to him. Hera tricked the amazons into thinking Heracles was an enemy so they attacked him and Heracles feeling betrayed kills Hippolyte.