using System;
using System.Text.RegularExpressions;
using System.Collections.Generic;
using System.Collections;
using System.Linq;

public class Test
{
	public static void Main()
	{
		var phrases = new List<string> { @"(one)", @".two.", "[three]" };
		phrases = phrases.OrderByDescending(x => x.Length).ToList();
		var pattern = $@"(?!\B\w)(?:{string.Join("|", phrases.Select(z => Regex.Escape(z)))})(?<!\w\B)";
		var text = "[three] (one) .two. One[three]more time(one)here we.two.have a text";
		var matches = Regex.Matches(text, pattern).Cast<Match>().Select(x => x.Value).ToList();
		Console.WriteLine(string.Join(", ", matches));
	}
}