Perhaps you should try some spelling variations:
communication model » communication media
risi communication » risk communication, crisis communication, risk communications
clean development » human development, urban development
development banks » development bank
information 1.2 » information 1.5.2, information 2
model clean » model coleman, model can, model learn
des risi » de risi
1.2 des » 1.2 das, 1.2 der, 2.2 des

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

• Adding a wildcard symbol may retrieve word variants: technologies _ information 1.2 des risi communication model clean development banks afrique.*.