Perhaps you should try some spelling variations:
2.7 communication » 2.3 communication, 3.2 communication, 2 communication
de developpement » sme development
developpement en » developpement et, developpement des, developpement de
technology 2 » technology _, technology 1, technology 3
2 inflation » 12 inflation, _ inflation, 6 inflation
rate space » state space, trace space, safe space
space 2.7 » space 2.1, space 2.2, space 2.3
a de » a die, a der, a des

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

• Adding a wildcard symbol may retrieve word variants: technology 2 inflation rate space 2.7 communication a de developpement en afrique.*.