Heat olive oil in a large stockpot over medium heat.
Add onion, carrots, and celery to the pot and sauté for 6 minutes until onions are translucent.
Add the minced garlic and cook for 60 seconds until fragrant.
Incorporate the cubed chicken and cook for 4 minutes, stirring occasionally to brown the exterior.
Pour in the chicken broth and add the dried thyme and oregano.
Bring the liquid to a rolling boil, then reduce heat to low and cover.
Simmer for 25 minutes or until the chicken is cooked through and vegetables are tender.
Stir in the frozen peas and corn and cook for an additional 4 minutes.
Season with salt and pepper to taste.
Remove from heat and stir in the fresh parsley before serving.