One of the most common ploys Search Engine Optimisation companies will use with you, to get your cash and appear to have achieved great results, is to optimise your website for phrases that are either not being searched for by users, or are not competitive phrases.Make a research on what people are looking for, but properly researching keywords and phrases will make sure you target the right audience,go for a good key word tool in finding best keywords which targets all kinds of users.
Keyword Suggestion Tools page has links to the best Keyword Suggestion Tools on the internet and these tools will help you to optimize your website and move your search engine position higher.
use Google add-word tool check the search volume and compere competition. choose High search volume keyword and less competition keyword., This would reach better result for your website
Ultimately, if your running a Google Adwords campaign you'll have to determine over time which are your best keywords in regard to conversion. Whatever you do, make sure to setup the conversion tracking - without it you'll never get an optimized campaign.
Using google keyword tool find the keyword with high searches but less competetion and search for the same keyword in google, if there are not much search result you got a good keyword but it is really time consuming. best of luck
Due to special tools, for example, Google Adword keyword selector, you can choose best keywords, but it's hard work, you should look though many keywords and choose suitable for you service/good. step by step, from main keyword to simple keyword, choose and choose!
To choose the best keyword you should study the relationship between queries and competition on Google!