Keyword Building states the list or Building the keywords which has been collected after all the Keyword Research. It will be helpful to promote the business or services while in terms of Keyword search. Build the keywords according to the main categories of your business and the terms or phrases that might fall under each of those categories and select specific keywords that directly relate to your ad’s theme. Using more specific keywords would mean that your ad only appears for terms that apply to your business. But keep in mind that if the keywords are too specific, you might not be able to reach as many people as you’d like. You should try testing out more and less specific keywords and then decide which ones give you better results by picking the right number of keywords.