Perhaps you should try some spelling variations:
communication service » communication services, communications services, communication series
clean development » human development, urban development
und information » fund information, road information, award information
technology und » technology fund, technology used, technology use
service clean » service client, service chain, service chap
a afrique » l afrique, en afrique
flows de » flows do, flows debt, flows bei
de mass » de masse, de mais, de masa

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

• Adding a wildcard symbol may retrieve word variants: technology und information flows de mass communication service clean development a afrique.*.