Perhaps you should try some spelling variations:
das communication » mass communication, c's communication, lea's communication
clean development » human development, urban development
und informations » und information, und informationen, fund information
technologie und » technologies 2.1
development de » development d, development ds, developpement de
de afrique » de l'afrique, en afrique, l afrique
doch das » durch das, losch das, sich das

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

• Adding a wildcard symbol may retrieve word variants: technologie und informations und doch das communication _ clean development de afrique.*.