it's nothing to panic about long search for a rare specialist like a VP of Marketing or a Game producer. These are quite rare and highly demanded specialities. It can take up to six months to fill such vacancies, and this is fairly commonplace.
You can panic if for more than three months you can't find a specialist for a popular position, such as Python or Java developer. It's worth considering that perhaps you made a mistake in the salary ranges formation or set too many requirements for a specialist.