The Search Terms Report
This Report gives you information on what people were searching for when they saw your ad and clicked on it. This information can help you remove or pause poorly performing keywords or add new ones. You can also use the search terms report to help you identify negative keywords.
Go to https://adwords.google.com > click on your Campaign > click ‘Keywords’ >
Click ‘Details’ > click ‘Search Terms All’ on the drop-down menu.
On the page that opens scroll down the page to view the terms (keywords) that people searched for.