Perhaps you should try some spelling variations:
rural development » social development
2.1 communication » 2.14 communication, 2.3 communication, 2.7 communication
development main » development making, development moving, development mode
communication 4 » communication _, communication a, communication 3
revolution die » revolution _, revolution how, revolution 1
technology la » technology law, technology lag, technology land
la revolution » a revolution, der revolution, die revolution
main afrique » en afrique
die spaces » life spaces, like spaces, die sparer
spaces 2.1 » space 2.1, spaces 1.1, spaces 1
4 rural » a rural, 2 rural

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

• Adding a wildcard symbol may retrieve word variants: technology la revolution die spaces 2.1 communication 4 rural development main afrique.*.