How does Google sort search results?
To give you the most useful information, Search algorithms look at many factors and signals, including the words of your query, relevance and usability of pages, expertise of sources, and your location and settings. The weight applied to each factor varies depending on the nature of your query.
Can you filter Google search results by date?
Using a Time Frame
Sometimes you may want to only find information published during a specific time frame. To limit Google results by date, click on Tools, then click on Any Time and choose the filter or Custom Date Range that interests you.