why some ppl said after visiting the tomb of a saint and the Pope 'tomb can get heal or some miracle happend

Question

why is this happend, are the tomb';s of the saints got miracles power

Answer 1

Some do indeed.

Here's what happened at the tomb of Elisha (Eliseus) the old testament prophet:

2Ki 13:20 And Eliseus died, and they buried him. And the rovers from Moab came into the land the same year.
2Ki 13:21 And some that were burying a man, saw the rovers, and cast the body into the sepulchre of Eliseus. And when it had touched the bones of Eliseus, the man came to life and stood upon his feet.

Answer 2

This can happen for one of 2 reasons. The relic of a Saint can have some powers. And more often the mind of the believer can have even more power. We only use a small part of our minds. IMO, God made the human mind to do great things. There are many people who have written about the power of belief. Many of the healings take place because of the power of the human mind in a person who believes that they will be healed by going there. Either way, the healing is from God.

Answer 3

Acts 19:11-12 - Paul's handkerchiefs healed the sick and those with unclean spirits. This is another example of physical things effecting physical and spiritual cures.

The problem is that most Protestants do not accept that grace can flow from physical things, and thus they diminish the Incarnation principle.

2 Kings 13:21 - Elisha's bones bring a man back to life. The saints' bones are often kept beneath the altars of Catholic churches and have brought about supernatural cures throughout the Christian age.

Rom. 13:7; Phil. 2:25-29; Heb. 3:3; 1 Pet. 2:7 – we are taught to honor the people of God and in 1 Cor. 4:16-17; 1 Cor. 11:1-2; Phil. 3:17; 1 Thess. 1:6; 2 Thess. 3:7; Heb. 6:12; Heb. 13:7; James 5:10-11 – we are reminded to imitate them. Keeping relics of the saints serves both to honor and imitate their heroic faith in Christ (just as keeping articles of deceased loved ones helps us honor and imitate them).

Evangelical Protestants of the "low church" or non-denominational variety especially, oftentimes exhibit an antipathy to matter as a conveyor of grace (or "blessing"). In other words, they tend to deny the sacramental principle. This hearkens back to the Docetic heresy, with traces of Nestorianism and Donatism. Non-Catholic and non-Orthodox Christians frequently express the notion that matter is a step down, a "reduction" of Christ's Atonement: Matter vs. Spirit. Catholics (and Orthodox and many Anglicans and Lutherans) believe that the truth is quite the contrary, both prima facie and when examined in scriptural and reasoned depth.

We pay $20,000 for a $200 jacket worn by Jacqueline Kennedy, faint at Beatles concerts, engage in riotous behavior to get our hands on one of Elvis's scarves, but when a relic of St. Catherine is mentioned, people snicker.
http://www.fisheaters.com/relics.html
Please note: the sale of relics for any amount is forbidden by canon law.

Many cures have been reported at the tomb of St. Dymphna, one of my favorite saints. She is the patroness of the mentally ill and the possessed. http://www.catholic-forum.com/saintS/saintd01.htm

The critic who compares the veneration of relics to magic fails to comprehend either magic or the veneration of relics. Magic employs material objects in order to cause a supernatural effect through demonic forces. Using relics doesn't compel God to act in a certain way. Miraculous events associated with relics are simply cases in which God, according to his sovereign will, uses the mementos of Christ and his saints as conduits of grace. Nothing could be more scriptural.
http://www.catholic.com/thisrock/1993/9306fea1.asp

The veneration of relics is seen explicitly as early as the account of Polycarp’s martyrdom written by the Smyrnaeans in A.D. 156. In it, the Christians describe the events following his burning at the stake: "We took up his bones, which are more valuable than precious stones and finer than refined gold, and laid them in a suitable place, where the Lord will permit us to gather ourselves together, as we are able, in gladness and joy and to celebrate the birthday of his martyrdom."
http://www.catholic.com/library/relics.asp
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Answer 4

No they don't, but even if they did, it would take more than just a miracle to make you spell correctly.