Perhaps you should try some spelling variations:
de communication » mobile communication, online communication
developpement en » developpement et, developpement des, developpement de
technology used » technology use, technology based, technology users
a developpement » au developpement, de developpement, le developpement
used infection » need infection, und infection, une infection
infection rate » infection rates, inflation rate
rate espace » entre espace, rate despite
costs a » costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technology used infection rate espace de communication costs a developpement en afrique.*.