Why did One Piece chapter 750 come out late? I have been waiting and waiting and have been checking every website about One Piece, and I couldn't find anything.

Are there any reasons why chapter 750 came out late?
One Piece has been on hiatus for 2 weeks (Weekly Shonen Jump issue 28 &amp; 29) since Oda was getting some sort of surgery done. It should be back in the next issue (issue 30).