Perhaps you should try some spelling variations:
information united » information und, information use
2.7 communication » 2.3 communication, 3.2 communication, 2 communication
rate information » trade information, care information, age information
developpement de » developpement des, developpement durable
technology rate » technology state, technology role, technology related
de afrique » de l'afrique, en afrique, l afrique
united a » united _, unite a, united ara
a 2.7 » a 2.1, a 2.2, a 2.3

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

• Adding a wildcard symbol may retrieve word variants: technology rate information united a 2.7 communication costs _ developpement de afrique.*.