The most comprehensive & beneficial Duas (supplications) are those found in the Noble Qur’aan & Hadith of Nabi Muhammad (SallAllahu alaihi wa Sallam). Whilst it is permissible for one to make Dua in one’s own language & using one’s own words, it is highly recommended that every Muslim make an effort to ask Allah Ta’ala using the words of Qur’aan or Hadith.
One such comprehensive Dua is the Dua for one’s parents, mentioned by Allah Ta’ala in the 15th Juz of the Noble Qur’aan. May Allah Ta’ala bless our parents with His Mercy in this life & the next.