How do I...Display string which has particular word

#include <iostream>
#include <algorithm>
#include <string>
#include <vector>

#define STRING_ARRAY_LENGTH 5

bool findString(std::string original, std::string search)
{
	/*
		this function tries to find a string inside another string.

		original - string with text to be searched.
		search - string with text to be found.

		returns true if 'search' exists in 'original'

		note: this function is not case sensitive.
	*/

	std::string::size_type foundPosition;

	std::transform(original.begin(), original.end(), original.begin(), ::tolower);
	std::transform(search.begin(), search.end(), search.begin(), ::tolower);

	foundPosition = original.find(search);

	return foundPosition != std::string::npos;
}

int main(void)
{
	std::string* myStringCollection = new std::string[STRING_ARRAY_LENGTH]
	{
		"this is tom",
		"tom and jerry is a cartoon show",
		"i am BS Computer science student",
		"Tom cruise is my favorite actor",
		"C++ is a object-oriented language"
	};

	int myStringIndex = 0;

	std::string mySearchString("tom");

	while(myStringIndex < STRING_ARRAY_LENGTH)
	{
		if ( findString(myStringCollection[myStringIndex], mySearchString) )
			std::cout << myStringCollection[myStringIndex] << std::endl;

		myStringIndex++;
	}

	return 0;
}