Usually no. Color negative film tolerates overexposure much better than severe underexposure. If the negatives look essentially blank even when viewed against a bright background, there likely wasn’t enough light to record usable image information in the emulsion.

Once the film has been processed, fixed, and stabilized, unexposed light-sensitive material has been removed. That means there isn’t hidden detail waiting to be “unlocked” later by scanning. A scan can only extract what is already present on the negative; it cannot recover information that was never recorded.

In some cases, labs can adjust development to compensate for a known, consistent exposure error, but that must be done before or during processing and is a one-shot, risky approach. After normal processing, recovery options are very limited.

Black-and-white film can sometimes be chemically intensified if a faint silver image exists, but that does not generally apply to color negative film.

So if you truly can’t see an image on the negatives, there is probably nothing meaningful to recover. Unfortunately, this is a common film-learning mistake.