Perhaps you should try some spelling variations:
data communication » data communications
communication cost » communication costs, communication costa, communications costs
clean development » human development, urban development
infection nach » infection rate, infection data, infection a
development l » development li, development 1, development law
technology 1 » technology _
nach process » batch process, cash process, search process
1 infection » 19 infection, _ infection, 4 infection
cost clean » costs clear
l afrique » en afrique

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

• Adding a wildcard symbol may retrieve word variants: technology 1 infection nach process data communication cost clean development l afrique.*.