Perhaps you should try some spelling variations:
communication system » communication systems, telecommunication system, communication series
technologies world » technologies could, technologies work, technological world
world information » road information, award information, fund information
system human » systems human, subsystem human, system has
a afrique » l afrique, en afrique
e risk » 2 risk, 1 risk

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies world information _ e risk communication system human development a afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies world information _ e risk communication system human development a afrique.*.