Steem up-votes are derived from posting original, well-produced content.
If someone takes the time to open your post and they they learn something new while feeling you deserve recognition for what they're learning - they will up-vote the post.
By glancing over some of your posts I can see you spend a lot of time re-publishing the same content which consists begging people to up-vote the post, promising them gifts, etc.. ---- It doesn't work like that and it's annoying.