To add keywords:

1. Navigate to Policy > Keywords & Expressions, click Add button to open the Add Keyword Expression window.
2. Once the List name and Match fields are specified, click the Add button to open the Add Keyword Expression window.
3. Add the keywords. To specify an exact match, use \b before and after the keyword. See sample below:
   keyword matches "keywords", "akeyword"
   \bkeyword\b matches "keyword" only
4. Click the Save button twice to exit the screen.

For more information about using Keyword & Expression, refer to the Online Help below:

https://docs.trendmicro.com/all/ent/imsva/v9.1_sp1/en-us/imsva_9.1_sp1_olh/imsva-usg-kw-exp.html