Perhaps you should try some spelling variations:
2.2 communication » 2.3 communication, 3.2 communication, 2.7 communication
des developpement » des developpements, de developpement, le developpement
developpement de » developpement des, developpement durable
dis integration » disintegration _
technology dis » technology does, technology 4ir, technology dlt
de afrique » de l'afrique, en afrique, l afrique
trade 2.2 » trade 3.2, trade 4.1
costs des » costs fees

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

• Adding a wildcard symbol may retrieve word variants: technology dis integration a trade 2.2 communication costs des developpement de afrique.*.