Exam dates are searchable, details filled in custom field of user field show up during users sign up as a question. For example, the custom field was exam date, so during sign up user will write there date.
This dates are searchable and indexed in search forum, that’s not the problem.
Problem is, the search function works for topics, tags and username- only this three categories. So the complete search for a detail in user’s profile is not accessible but searchable.