Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
4.2 developpement » 4.2 development, de developpement, le developpement
information case » information based, information can, information costs
developpement l » developpement il, developpement la, developpement de
technologies 2 » technologies _, technologies 4
l afrique » en afrique
case age » case case, case anne, case a
age data » wage data, cge data, image data

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information case age data communications costs 4.2 developpement l afrique.*.