Perhaps you should try some spelling variations:
2.3 communications » 2.3 communication, 4.3 communication, 1.3 communication
et developpement » de developpement, le developpement, test development
developpement en » developpement et, developpement des, developpement de
technology gaps » technology gap
inflation rates » inflation rate
gaps inflation » has inflation, grade inflation, rapid inflation
space 2.3 » space 2.1, space 2.2, space 3.3

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

• Adding a wildcard symbol may retrieve word variants: technology gaps inflation rates space 2.3 communications _ et developpement en afrique.*.