You don't really mean that you "searched" the database for it. You mean you flipped through some likely folders and gave up.
In the USA library, I found it by doing an object search as illustrated.
All users should understand this Object management function so as to save post repliers the tedium of trying to show the folder tree in their message.
In the Excited States of America — Archicad 13 Library, the Text 3D is kept in Specialties>Signage.
Dwight Atkinson