This means that apart from the first and last names, you may search for words in e-mail addresses and URLs, city and country names, professions and any words in the comment section.

The search is not case sensitive.

By not using accents in the keyword field below you will find all records that contain the exact match of that keyword.
On the other hand if you do use accents, you will not only find exact matches but also records that contain the keyword without accents.