Perhaps you should try some spelling variations:
sample communication » example communication, complex communication, people communication
developpement de » developpement des, developpement durable
4 developpement » de developpement, le developpement, et developpement
technology die » technologie die, technology does, technology 4ir
der sample » des sample, over sample, d sample
de afrique » de l'afrique, en afrique, l afrique
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology die transformation _ der sample communication costs 4 developpement de afrique.*.