The 22-year-old has been charged with murder in the death of her daughter, Caylee.
The search by Orange County deputies came a day after authorities said a tiny skeleton found last week in swampy woods less than a half-mile from the home was that of the missing toddler.
The discovery of the remains came after months of searches.
Casey Anthony was indicted in October even though no body had been found.
She has insisted she left the girl with a baby sitter in June, but she didn't report her missing until July.
