Perhaps you should try some spelling variations:
communication costa » communication costs, communications costs, communication cote
11.6 communication » 1.1 communication, 1.3 communication, 1.4 communication
del developpement » de developpement, des developpements, le developpement
technology trade » technology trends, technology transfer, technology transfers
regulation la » regulation law, regulation a, regulation lack
des afrique » en afrique, de l'afrique
race 11.6 » case 11.6, race 1.4, race 1.5
costa del » costo del, costa e, cose del
la race » a race, la roche

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

• Adding a wildcard symbol may retrieve word variants: technology trade regulation la race 11.6 communication costa del developpement des afrique.*.