Perhaps you should try some spelling variations:
communication costs » communication systems, communication efforts, communication skills
technologies debt » technologies new, technologies ict, technologies sector
debt information » student information, credit information, health information
information gaps » information gap, information flows, information needs
a developpement » de developpement, a development, _ development
de mobile » does mobile, _ mobile, a mobile
costs a » costs _

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

• Adding a wildcard symbol may retrieve word variants: technologies debt information gaps de mobile communication costs a developpement _ africa.*.