All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad is His slave and Messenger.
First of all, we advise you to seek the help of Allaah The Almighty and earnestly supplicate Him to facilitate pious husbands for your daughters. Indeed, Allaah The Almighty ordered us to supplicate Him and He promised to answer our supplication. Allaah The Almighty Says (what means): {And your Lord says, Call upon Me; I will respond to you.” Indeed, those who disdain My worship will enter Hell [rendered] contemptible.} [Quran 40:60]
Among the reasons which lead to the acceptance of the supplication is to respect its conditions and etiquettes. This was discussed in Fataawa 85974 and 83421.
Besides, you should know that the first reason for your condition is due to residing in a non-Muslim country. Thus, the solution is to move to a Muslim country where there are competent and suitable men. If it is not possible for you to do so, then you may propose your daughters by the means of communication to trustworthy people whom you know from among their Muslim relatives from the father’s side or from the mother’s side in your country or in any other country, as there is nothing wrong with this Islamically. Indeed, ‘Umar proposed his daughter Hafsah to Abu Bakr and then to ‘Uthmaan but they both did not agree to marry her as they knew that the Prophet was interested in marrying her.
Allaah Knows best.