You can narrow down your search by using so-called Boolean operators, which you type directly into the search field. The most important operators are listed down below:

  Explanation Example Search request
AND-search Connect individual search terms with the operator AND. Only if a website contains all terms, will it be listed in the search results. You are looking for a hotel in Berlin. Hotel AND Berlin
OR-search Connect individual search terms with the operator OR. Only if a website contains at least one of the terms, will it be listed in the search results. You are looking for an apartment or a hotel in Berlin. Berlin (Apartment OR Hotel)
NOT-search Substract the terms you wish to be excluded from the search by adding a minus sign in front of them. Only if a website does not contain the terms, will it be listed in the search results. You are looking for a hotel in Berlin but do not want to stay in a motel. Berlin Hotel –Motel
Phrase-search If you are not looking for a single term but rather a phrase, you might want to put it in quotation marks. This way, only results matching exactly your phrase will be mentioned. You are looinkg for the originator of a famous phrase. „To be or not to be“
search inside a website If you are looking for a term on a specific website, add the operator site after your search term, followed by the URL of the website. This way, only results on this specific website will be listed. You are looking for a specific DSL tariff by 1&1. DSL tariff site:1und1.de (Important: No space between between „site:“ and the desired domain)