Perhaps you should try some spelling variations:
communication costa » communication costs, communications costs, communication cote
trade information » price information, private information, trade integration
4.2 communication » 4.2 communications, 3.2 communication, 4.1 communication
technology trade » technology trends, technology transfer, technology transfers
information wage » information age, information war, information wants
developpement en » developpement et, developpement des, developpement de
e developpement » de developpement, le developpement, et developpement
rates 4.2 » rates 4.5

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

• Adding a wildcard symbol may retrieve word variants: technology trade information wage rates 4.2 communication costa e developpement en afrique.*.