Some Google Search tricks maybe you don't know

Google Tricks , many but here I would like to share some of their tips or apply content in the search process for you reference .
1 . Removing a wordWant A search for a phrase , but you do not want to display the results from B , use the " - "Eg online - marketing seoIn my example above search for articles related to online marketing , but do not want to display the article on SEO .

 2 . Results from a fixed siteYou want a keyword search , but you want to display only results only from a certain website , please use the following search command : "keyword site: your site "Example : social media site: junookyo.blogspot.comIn this example, I'm just looking for the article on Social Media page http://junookyo.blogspot.com/
 3 . Results containing synonymsYou want to search for articles related to the topic A , but in that article also contains synonyms for A , use the following search command : " A " ~ synonymsEg : " children " kids ~In my example above search for articles about " children " but the article must be from a child
 4 . andThis according to her is quite similar to Ordinance No. 3 . You can search for topics than 2 keywords to filter more details . For example when you want to find articles about children , but only want to show the kids all of Asia alone , I would search : asian kids +So we'll use the " + "
 5 . Search a file formatAre you looking for a little documentation , but you just want to find the pdf file , use the following command : "keyword " filetype : file formatEg : " social media " filetype : pdfIn the above example I want to find documents about Social Media but the file format is PDF
 6 . orYou want to search for articles from A or B , use the command "OR "Example : kids child ORIn my example above search for articles related to " kids" or " child "
 7 . computersGoogle search is a convenience for your PC on your desk if there is no power from any computer .Use * / + - .... as usual to calculate
 8 . definitionIf you need to define a certain word , use the command define : keywordThis is very good for improving English thatExample : define : computer
There are many more tips , you can refer here : http://www.google.com/insidesearch/tipstricks/all.html