Not all video versions are the same, so not all subtitles are synced to all videos. Sometimes it's enough to just shift everything forwards or backwards, and/or change frame rate. But sometimes the video is a totally different 'cut', like extended version or directors cut. Also, typically HDTV versions are different from Bluray or Web-DL versions, because of the advertisement blocks. Then you need to find all the different blocks and resync each of them. In the worst case, you must do a resync for every single line. This is a hell of a job.
I don't know what is the situation in your specific case. But instead of fighting with resyncing the subtitles, maybe the best way to go is get another video version. See the available Dutch subs for Tar:
https://www.opensubtitles.org/en/search ... ie-1167107
Now pick one of them and find the stated matching video file.
I assume you are Dutch(?) - if that's the case, here is some extensive topic about all this:
viewtopic.php?f=39&t=16548