Facebook users can use the Graph Search tool to search for content that has been shared with them.
Search terms can be typed into a blue search bar at the top of each page, for example:
"Friends who live in my city", "people who like things I like", "photos of my family", "countries my friends have visited", "books read by CEOs".
Suggestions will then appears in a drop down menu. The search results can then be refined by using filters.
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Eduardo Paes says that despite Brazil's political turmoil Rio de Janeiro is ready to welcome the world for the 2016 Games.
France will host the tournament from June 10 to July 10, with hundreds of thousands of fans set to flock to the country.