Looking at your horoscope we see that your 7th house which is the prime house of marriage is ruled by Venus. Venus is posited in the 7th house in the krittika nakshatra which is the Nakshtra of Sun. You are presently in the mahadasha of Jupiter and the antardasha of Venus. Strong period for marriage stars after September 2016 when Jupiter the karka for husband enters Virgo. You should keep trying now and going forward you can expect good results on this front.