Perhaps you should try some spelling variations:
4.5 communication » 3.5 communication, 4.1 communication, 2.5 communication
de developpement » sme development
existing effect » mediating effect, testing effect
developpement l » developpement il, developpement la, developpement de
technology 2 » technology _, technology 1, technology 3
effect from » effects from, expect from, effect firm
2 existing » _ existing, 3 existing, pre existing
l afrique » en afrique
from 4.5 » from 2.5, from 15, from 2.3
costs de » costs _, costs 4, costs a

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

• Adding a wildcard symbol may retrieve word variants: technology 2 existing effect from 4.5 communication costs de developpement l afrique.*.