Perhaps you should try some spelling variations:
information centers » information contents, information officers
deux developpements » des developpements, de developpement, du developpement
3.1 communication » 3.1 communications, 3.2 communication, 3.5 communication
developpements en » developpement en, developpement et, developpements de
technologies a » technologies _, technologies 4, technologies 2
a information » 2 information, 1 information
centers ban » centers can, centers rain, center can
ban 3.1 » bang 3.1, ban 4.1, been 3.1

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

• Adding a wildcard symbol may retrieve word variants: technologies a information centers ban 3.1 communication _ deux developpements en afrique.*.