'Searches' in the Bible

"Or suppose a woman has ten coins and loses one of them. She lights a lamp, sweeps the house, and searches carefully until she finds it, doesn't she?

No one understands. No one searches for God.

and the one who searches our hearts knows the mind of the Spirit, for the Spirit intercedes for the saints according to God's will.

But God has revealed those things to us by his Spirit. For the Spirit searches everything, even the deep things of God.

I will strike her children dead. Then all the churches will know that I am the one who searches minds and hearts. I will reward each of you as your actions deserve.