Keyword targeting helps you to match the content of the advertising campaign with the content of specific websites.
To be matched with publisher keywords in your campaign you should keep it simple, common and quite generic. For example:
Instead of “how to attract money” just put money or income.
Keeping your keyword positive targeting relevant to your target settings will also help to maximise matches. Using a keyword Asian if you are campaign category is Latina will not have any impact for example.
If you want to specify keywords for your campaign, you can add up to 500 words, but don't be too restrictive, otherwise you may end up with no traffic to target!
Go to Step 3 of the campaign set up:
In the Keywords Targeting section enter your words on a separate line.
You can add or block any keyword in any language.