Perhaps you should try some spelling variations:
persona communication » personal communication, personal communications, personal communicator
information age » information storage, information access, information about
4.2 development » 3.2 development, 2.3 development, 1 development
technologies 2 » technologies _, technologies 4
de persona » de personal, de personas, die persona
a afrique » l afrique, en afrique
age de » page de, stage de, image de

You may be able to get more results by adjusting your search query.

• Adding a wildcard symbol may retrieve word variants: technologies 2 information age de persona communication costs 4.2 development a afrique.*.