Perhaps you should try some spelling variations:
5.2 communication » 3.2 communication, 6.2 communication, 2.2 communication
developpement de » developpement des, developpement durable
technology und » technology fund, technology used, technology use
und inflation » _ inflation, low inflation, der inflation
inflation a » inflation _, inflation tax, inflation rate
process 5.2 » process 2.2, process 5.1, process 2.1
de afrique » de l'afrique, en afrique, l afrique

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

• Adding a wildcard symbol may retrieve word variants: technology und inflation a process 5.2 communication costs _ developpement de afrique.*.