How to Search in google?

There are some ways to search in google engine.You googling many ways but with the right commands and shortcuts which will help to you.

• One powerful way to search is use search prefix like if you want to search for a website then write 'site' and seperate word by colon and write your search words or you can say predefined triggers :
• for example :  
• site : asp.net 
• weather : Ahmedabad
• images : cartoon
• You can add suffix also if you know your particular search like you want to search India map then write India Map. Google gives answer immediately.
• Third powerful thing about google is that it does Math Conversation also like if you type 7+10 in google it gives you answer 17 rather then search other things. You can also calculate square root values also like (5+10) + (sqrt 10) ^15 you get 31622791.6.
• Fourth one is that Conversations like if you want to 1 $ to Indian rs you can do it very simply by writing 1 dollar in rupees, 20f to c (converts Fahrenheit to Celsius)
  
• Now last but not the list, you can search specific files like pdf or doc or others. For this purpose use filetype prefix. 
• filve point some one filetype : pdf