The operation to remove scar tissue is called Adhesiolysis and to repair the fallopian tubes is called Salpingoplasty.  If the fallopian tubes are clear and conception does not happen then reconstructive surgery has little role.  You need to check your AMH level to assess if IVF would give you a higher chance of success than tubal surgery.  However, if you are over 37 and have a very low AMH then surgery would be a better option.