mbrella uses a powerful text search engine for its restricted party screening feature. Below are a few tips and an example showing the tradeoff between strong and weak query syntax.
Screening has a few common fields and uses dynamic fields to address to different data formats around the world. We have tried our best to at least align these few fields to improve focused query results - however, we recommend using a variety of query syntax to improve accuracy.
So, free-form text [bin laden] had the most hits but the lowest score, whereas [name:"bin laden"] was a very specific query against the name field and delivered a very confident score of 8+.
IMPORTANT: There are multiple dynamic name/alias/title/entity fields in the database that may contain 'name' information - hence the need for multiple query approaches outlined here.