1. Take Legal Issues on third party website having your site links or content bad or illegal:

https://support.google.com/legal/contact/lr_legalother?product=websearch

2. Google Disavow links Tool: Bad links reporting tool

https://support.google.com/webmasters/answer/2648487?hl=en

https://www.google.com/webmasters/tools/disavow-links-main

3. For Rich Snippet Type Queries:

https://support.google.com/webmasters/contact/rich_snippets_spam?hl=en

4. Remove Content Request on Third Party Website:

https://support.google.com/webmasters/answer/1663688

5. Remove personal information

https://support.google.com/websearch/troubleshooter/3111061#ts=2889054

6. Remove content for legal reasons

https://support.google.com/legal/troubleshooter/1114905?product=websearch&rd=2#ts=1115655,1282900,1115974

7. Remove outdated Content

https://www.google.com/webmasters/tools/removals?pli=1

8. Removing Content from Google

https://support.google.com/legal/troubleshooter/1114905?hl=en

9. Web Spam Reporting

https://www.google.com/webmasters/tools/spamreportform?hl=en