Perhaps you should try some spelling variations:
communication costs » communication systems, communication efforts, communication skills
technologies could » technologies volume
could information » child information, pooled information, road information
information gaps » information gap, information flows, information needs
development en » development menu, development can, development _
costs human » lost human

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

• Adding a wildcard symbol may retrieve word variants: technologies could information gaps de _ communication costs human development en afrique.*.