Perhaps you should try some spelling variations:
roads developpement » roads development, road development, de developpement
later communication » layer communication, water communication, master communication
developpement en » developpement et, developpement des, developpement de
technologies 2 » technologies _, technologies 4
information 15 » information 1, information 11, information 14
years later » years after
15 years » 10 years, 10 year, 5 year
a roads » _ roads, a road, 5 roads

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information 15 years later communication a roads developpement en afrique.*.