@Override
	public List<Book> searchBook(String term) {
		term = ".*" + term + ".*";
		List<Book> match = new ArrayList<Book>();
		for (Book book : getBooks()) {
			if (book.getAuthor().matches(term) || book.getIsbn().matches(term)
					|| new String(book.getPrice() + "").matches(term)
					|| book.getTitle().matches(term))
				match.add(book);
		}

		return match;
	}