Duplicate problems

I’m having problems with my posts being taken done because it’s a duplicate,
First of all,I search before I post and when I do nothing pops up related to the post
So I make the post,I put in the title and on the side,it also showed no related post,
So can someone help me understand what I’m doing wrong so I don’t get my posts taken down all the time?

Sometimes things just don’t pop up. Nothing wrong with that. But before you request anything make sure you’re a member.