How can we check on what keywords our campaign are search ?
Just keep in mind that search queries will take two days to get updated. So be sure to select last seven days so that you can see the actual search terms.
Good Luck! Let me know if you have any trouble after following the instructions.
Just be careful with regard to the selection of negative keywords and the use of this feature. Remember that negative keywords are those keywords that prevents your ad from being triggered by that chosen word or phrase. It tells Google not to show your ad to anyone who is searching for that phrase.
If I read your comment right (and apologies if I haven't), you are talking about keywords which are not being searched as opposed to ones you do not want to be searched - subtle difference.
With regard to the Negative Keywords, check out,
Hope this was helpful.