Keyword Targeting
Keyword targeting is a type of contextual targeting that allows you to limit the pages where your ads will display to only those pages where the keywords and phrases that you define exist.
A common use case for Keyword targeting is in conjunction with a Broad targeting audience. With this combination it is possible to target all users in a country, then leverage Keywords to reach those users who are browsing content that contains your target keywords and phrases. Other targeting controls like contextual categories or locations can also be used to further refine the users you will target.
How to add Keyword targeting to an existing ad set?
To add keyword targeting to your ad set:
Under the Manage & Measure section in the navigation bar, select Campaigns and then click Ad sets
Click the three dots next to the ad set you want to add Keyword targeting to
Click Display targeting. Scroll down to find the Keyword Targeting section.
Add your keywords here or upload a .csv file with the keywords