Perhaps you should try some spelling variations:
national development » international development, institutional development, social development
communication soft » communication set, communication state, communication sur
der communication » de communication, under communication, debt communication
development cases » development case, development phases, development based
technologies 4 » technologies _
4 information » 2 information, 1 information
information 1 » information 2, information 3, information 3.2
soft national » post national, out national, about national
cases africa » crises africa, passes africa, rates africa
do der » ho der, mo der, do lider
1 do » _ do

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 information 1 do der communication soft national development cases africa.*.