Exact Phrase
if you are looking for web consultancy.  Instead of just typing web consultancy into the Google search, you will likely be better off searching explicitly for the phrase.  To do this, simply enclose the search phrase within double quotes
eg: “web consultancy”

Exclude Words
if you need to search for content about web consultancy, but you want to exclude any results that contain the term free.  To do this, simply use the “-” sign in front of the word you want to exclude.
eg: web consultancy -free

Site Specific Search
If you would like to search for a specific website then use Google to search the site for your term. Simply use the “site:thissite.com” method
eg: “web consultancy” site:www.bbc.com

Simple Questions
Google shows direct answers for simple questions above the search results. When you try to find a simple fact, enter you question this way: “uk population”. make it simple.
Complicated question like “How many people are in uk?” will confuse Google.
eg: uk population

Word Definitions
If you need to quickly look up the definition of a word or phrase, simply use the “define:”
eg: define:polyculture

Similar Words and Synonyms
If you want to include a word in your search, but want to include results that contain similar words or synonyms.  Then use the “~” in front of the word.
eg: “consultancy” ~professional

Specific Document Types
If you’re looking to find results that are of a specific type, you can use the “filetype:”. Lets say you want to find only PowerPoint presentations related to consultancy you can use the put the search like below
eg: “consultancy” filetype:ppt

This OR That
By default, when you do a search, Google will include all the terms specified in the search.  If you are looking for any one of one or more terms to match, then you can use the OR operator.  The OR has to be in Capital letters.
eg: consultancy OR advice

Phone Listing
Let’s say someone calls you on your phone and you want to find out who it is.  you can look it up on Google using the phonebook feature.
eg: phonebook:123-456-7890

Stock Market Details
Just enter a valid stock symbol as your search term and Google will give you the current financials and a quick thumb-nail chart for the stock.
eg: ACMR

Calculator
Simply type in the expression into google and it will give you the answer
eg: 550 * 15