Perhaps you should try some spelling variations:
development challenge » development challenges, development chapter
communication gap » communication gaps, communication gsm, communication gt
challenge africa » change africa, challenge radical, challenge from
technologies do » technologies de, technologies box, technologies daf
e communication » de communication, 1 communication, une communication
do information » 2 information, 1 information, 3 information
information 2 » information 3
2 der » _ der
der e » der eg, der _

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

• Adding a wildcard symbol may retrieve word variants: technologies do information 2 der e communication gap human development challenge africa.*.