1, You should know that a campaign is made of 2 levels.
2, Campaign is the first and you will manage all your settings on a campaign.
3, Now, inside a campaign are ad groups.When creating them, group the similar keywords together with no more than 2 common keywords.

Example:
Campaign Name: Finding-People-Free.com
Ad Group : Make Money Home
Keywords
make money at home
[make money at home]
"make money at home"
make money at home business
[make money at home business]
"make money at home business"
way to make money from home
[way to make money from home]
"way to make money from home"
Your ad May look like this
Make Money From Home
Want To Make Extra Money
From Home? Find Out How
Finding-People-Free.com
Can you see how "Make Money Home" are the 3 keywords within the ad group. The ad has the commom keywords in the title and body. Highlight the keywords within the ad. Doing this will increase your click through rate further. When a search is done "How To Make Monet At Home" the ad will look like the one above. Remember that the actual ad group name is based on the 3 common keyword.
Note: When putting together your ad groups; if you cannot include all the keywords within your ad group (or at least the common keywords) within your ad title and description, it is not grouped tight enough. If this is the case, break up your ad group into smaller, more relevant ad groups.

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