Different wazifas
Recite Surah 'Alam Nashrah' 17 times in such a way that after each verse say the name of the one you love, and his mothers name, and your name and your mothers name, and then recite:
'allahumma alqi muhabbatann 'ala qalbinn'
When the surah is complete, then blow what you have recited onto a whole black pepper, and burn it on a coal.
Repeat this for 3 days after the Fajr salah, insha'Allah, love will exist in the one you want to marry.
The most important wazifah, or du'a, that a person can do, for any worldly gain, or for gaining in the akhira, is to pray the five times salaah, and make as much recitation of the Qur'an al kareem, as possible.
It is only when you start doing this, that other du'as, will start to have a positive effect. Otherwise it is no use, as what good is a ceiling when there are no walls, or what good is a roof, when there are no foundations. However in finding the right spouse, the following is very useful:
'Subhan alladhi khalaqal azwaja kullaha mimma tumbitul ardu wa min anfusi him wa mimma la ya'lamun'
'Pure is He who has made all pairs of what the earth grows, and of themselves, and of those things, of which they have no knowledge' (36:36)
This verse must be recited 3313 times after the 'Isha' salaah, for a period of 21 days. You must also recite any *'Darood Shareef' *11 times, before and after the recitation.