Why would you put 'quotations' around a phrase when using a exact search instead of single quotation?

Using double quotations around a phrase in an exact search indicates that you want to find results that contain the exact sequence of Words as they appear within the quotes. This is useful for searching for specific phrases, such as "climate change," ensuring that the Words appear together in that order. Single quotations, on the other hand, are typically used in programming or specific database queries and may not function the same way in standard search engines. Thus, double quotations are standard for defining exact phrases in most search contexts.