Perhaps you should try some spelling variations:
3.2 communication » 3 communication, 2.3 communication, de communication
developpement du » developpement de, developpement des, developpement et
information die » information due, information does, informatie die
a information » 2 information, 1 information
technology a » technology 1, technology 3, technology 4
du afrique » en afrique, l afrique, de l'afrique
die trade » die triade, rice trade, die trager
trade 3.2 » trade 2.2, trade 2, trade 4.1

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

• Adding a wildcard symbol may retrieve word variants: technology a information die trade 3.2 communication costs _ developpement du afrique.*.