Perhaps you should try some spelling variations:
communication costa » communication costs, communications costs, communication cote
trade information » price information, private information, trade integration
information early » information easily, information search, information error
technology trade » technology trends, technology transfer, technology transfers
developpement de » developpement des, developpement durable
5 communication » 3 communication, 4 communication, de communication
e developpement » de developpement, le developpement, et developpement
de afrique » de l'afrique, en afrique, l afrique
french 5 » french _, french a, french he

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

• Adding a wildcard symbol may retrieve word variants: technology trade information early french 5 communication costa e developpement de afrique.*.