2nd: Choose closest nodes to you (by country)
3rd: copy ip address and port for instance: "72.64.11.172:8333"
4th: On the bitcoin core: Click Help -> Debug window -> Console and type this: addnode ip:port onetry
For instance: "addnode 72.64.11.172:8333 onetry" (don't forget to hit enter.
I suggest you to add 3 or 4 nodes like this. Then wait for syncing.
Don't do this shitposter's shitadvice.
Don't dish out accusations randomly. I'm not sure about his post quality but he may very well be right. There are several instances which I helped others to solve it with reindex and my VPS had such a problem too. If it doesn't work, please post the debug.log.