Perhaps you should try some spelling variations:
mass communications » mass communication, data communications, crisis communications
au developpement » du developpement, de developpement, le developpement
developpement de » developpement des, developpement durable
method overview » methods overview
trade mass » trade marks, trade class, trade means
de afrique » de l'afrique, en afrique, l afrique
social 3 » social _, social 4, social a
3 trade » 1 trade, 4 trade, 2 trade

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

• Adding a wildcard symbol may retrieve word variants: method overview social 3 trade mass communications _ au developpement de afrique.*.