Yes you can “Search by Name”, in the advanced search select 'Name' in the type of search first then enter the lastname and the firstname. However this is not the primary usage of our search engine.
If you don't find the person you are looking for, you can also try different typos and initials for its firstname. For example : you are searching for 'Bertrand Garnier', you can also try 'B. Garnier' and 'B Garnier'.