Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
3.3 communications » 3.1 communications, 3.3 communication, 2.3 communication
developpement il » developpement de, developpement et, developpement du
technology 4 » technology _, technology 1, technology 3
4 inflation » _ inflation, 2 inflation, 6 inflation
rate space » state space, trace space, safe space
il afrique » l afrique, en afrique
space 3.3 » space 3.2, space 2.1, space 2.2

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

• Adding a wildcard symbol may retrieve word variants: technology 4 inflation rate space 3.3 communications costs _ developpement il afrique.*.