In the campaign builder of the Dynamic Search Campaign Creation there is a section called 'Exclude Keywords'. Under this section there are two locations to write in terms: Exclude 'Specific words' or 'Whole phrase'
Use the 'Whole phrase' section when you would like to exclude a specific keyword phrase from your campaign. Please note that this looks at the terms, and not at the match type. If there are multiple match types of the phrase, all will be excluded from the campaign.
* Only the exact phrase entered in this section will be excluded.