(e.g., Far Cry 3, 4, or 6) are you trying to find, and was there a specific site name in the original download link?
If you are missing just Part 3 of a set, you generally need to return to the where you found the first two parts. Parts from different uploaders are usually not compatible with each other. download-far-cry-game-free-top-part3-rar
Files from "free download" sites often contain trojans or miners. Far Cry 3
If the file has a unique name (e.g., Far_Cry_Repack_by_XYZ.part3.rar ), search for that specific string in quotes. download-far-cry-game-free-top-part3-rar
Before proceeding, please consider the risks associated with these types of files:
Downloading paid games for free is a violation of copyright laws. How to Find a Specific "Piece"