Canon has full size JPEG. I don't know about Nikon.
It's extremely unlikely that raw (NEF) files are 'blurred' unless the image projected on the camera's sensor were blurred. The JPEG a made from the raw files, so if the image in the raw file is blurred then so will they be. In short, your photos are likely trash, and the directive concerning raw versus JPEG was immaterial to the matter.
Depending on the viewing software, the raw files will just show as the embedded JPEGs. You don't need dcraw on a command line to do extract the JPEGs. Irfanview and FastStone Image viewer will also both extract the JPEGs in one batch command, from a GUI. I don't know what the resolution of the D3200's embedded JPEGs are, but many manufacturers give full resolution in their embedded JPEGs. If your conversions are very blurred, however, don't expect different from the JPEGs.
Topaz Sharpen AI is the best-known tool for that. It works to a certain extent. However, I was surprised that it also works to "extend" DOF, which may not always be desirable
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My best guess is you have a poorly trained photographer. The camera is capable of doing very nice shots, unless the conditions were low light and or fast action. I think you have some responsibility to know the capabilities of the person you are relying on to do the job correctly. You can either not use this photographer again or provide them with the training they lack to do a better job.
You presented us with a problem of how to rescue blurry NEF files. You ought to have known that the images are not salvageable. That is an error someone makes if they do not understand the basics of digital photography.
Post a sample or make a NEF available for download and I'm fairly certain someone here will be able to give you a definitive answer as to whether the shots are salvageable or not.
