The word(s) "plan" appears 42 time(s) in 39 verse(s) in Quran in Mohsin Khan translation.

(31) (And has also sent to you) a Messenger (Muhammad صلى الله عليه وسلم), who recites to you the Verses of Allah (the Qur'an) containing clear explanations, that He may take out those who believe and do righteous good deeds, from the darkness (of polytheism and disbelief) to the light (of Islamic Monotheism). And whosoever believes in Allah and performs righteous good deeds, He will admit him into Gardens under which rivers flow (Paradise) to dwell therein forever. Allah has indeed granted for him an excellent provision.

(32) And I will grant them a respite. Verily, My plan is strong.

(33) And by those that swim along (i.e. angels or planets in their orbits).

(34) And grapes and clover plants (i.e. green fodder for the cattle),

(35) So verily, I swear by the planets that recede (i.e. disappear during the day and appear during the night).

(36) And by the planets that move swiftly and hide themselves.

(37) And the earth which splits (with the growth of trees and plants).

(38) And I (too) am planning a plan.

(39) No food will there be for them but a poisonous thorny plant,