Perhaps you should try some spelling variations:
5.2 communication » 3.2 communication, 6.2 communication, 2.2 communication
developpement l » developpement il, developpement la, developpement de
technology 2 » technology _, technology 1, technology 3
2 inflation » 12 inflation, _ inflation, 6 inflation
targeting a » targeting _, targeting how
l afrique » en afrique
a 5.2 » a 3.2, a 4.2, a 5.1

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

• Adding a wildcard symbol may retrieve word variants: technology 2 inflation targeting a 5.2 communication costs _ developpement l afrique.*.