Google search in multiple languages

1. How do I filter Google searches by language?
2. Why is Google search showing in different Languages?

How do I filter Google searches by language?

There is no way to limit Google searches to a particular language. However, if you want to restrict your search results to a certain language, you can use the + sign before the word you're searching for. For example, if you wanted to only see results in English, you would type +en into the search box.

Why is Google search showing in different Languages?

Open Settings > Search settings. Under Region Settings at the bottom of the page, select the region corresponding to the Google domain you're using. Scroll to the bottom of the page and click Save. You may also have to change and save the Language settings.