Maximizing the Match Rate
To generate the highest match rate possible, do not specify house number, street, and city/locality in the Close match criteria on settings on the Matching tab for each country geocoder.
Another way to maximize the match rate is by setting the fallback level to Postal centroid on the Geocoding tab. This means that the geocoder will fall back to the four-digit postcode centroid if a close street level match cannot be made. While this scenario might yield false positives, it may be the best matching solution when you have large databases to geocode.
You should evaluate if the percentage of false positives will affect your analysis. To reduce the number of false positives without sacrificing hit rate, analyze the result codes after a geocoding session and adjust your settings accordingly.