Use the iPhone’s Spotlight Search feature to find specific apps, contacts, messages, e-mails and more using keywords.

Method1

Using iOS 7 and 8

1. 
   1
   Swipe your finger down on any page of the Home screen. However, do not start swiping at the very top of the screen—That will open the Notification Center instead.
2. 
   2
   Type in your search query.
3. 
   3
   Scroll through the results by swiping up and down until you find the result you're looking for. Tap on it to open the result.

   • The new Spotlight Search function does not come with the options to "Search Wikipedia" or "Search Web".

Method2

Using iOS 6 and Before

1. 
   1
   Swipe your finger across your iPhone’s first Home screen from left to right.
2. 
   2
   Tap the field at the top of the screen and type your search.
3. 
   3
   Swipe a finger up the screen to view all search results organized by contacts, apps, e-mails, messages, reminders and others such as media files, notes and voice memos. Tap any of the results view the item.
4. 
   4
   Scroll to the bottom of the screen and tap Search Web or Search Wikipedia to view results from the Internet.