Perhaps you should try some spelling variations:
communication burden » communication burkina, communication burma, communication sweden
development cpia » development capita, development china, development capital
technologies 4 » technologies _
4 information » 2 information, 1 information
burden human » burke human, green human, hidden human
3 do » _ do, 1 do, 3 co

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "technologies 4 information ((3 do) OR (3 d)) _ communication burden human development cpia africa.~".
• Adding a wildcard symbol may retrieve word variants: technologies 4 information ((3 do) OR (3 d)) _ communication burden human development cpia africa.*.