My regex uses alternation (|) to match exactly the four target items. I've escaped special characters like periods, plus signs, parentheses, and forward slashes with backslashes to ensure they're treated as literal characters. The pattern will only match these exact strings and not any of the distractors mentioned in the text because:
1. For the email, I'm specifically matching the plus sign, not hyphen, and ensuring the domain has the dot before "com"
2. For the phone number, I'm matching the exact format with parentheses
3. For the date, I'm matching the exact format with "Oct" abbreviated
4. For the code, I'm matching exactly "aa11aa" and not any of the variations