for (int j=0; j<currentTree.getValue().size(); j++)
		{
			if (currentTree.getValue().get(j).length() == signiture.length())
			{
				if (!matching.contains(currentTree.getValue().get(j)))
				{
					matching.add(currentTree.getValue().get(j));
				}
			}
			else if (currentTree.getValue().get(j).length() > signiture.length())
			{
				if (!matching.contains(currentTree.getValue().get(j)))
				{
					matching.add(currentTree.getValue().get(j).substring(0, signiture.length()));
				}
			}
		}
		return matching;