Perhaps you should try some spelling variations:
communication model » communication media
change information » chandos information, trade information
maio communication » radio communication, radio communications, daily communication
technology change » technological change, technological changes
clean development » human development, urban development
information act » information age, information a, information about
model clean » model coleman, model can, model learn
de maio » de mario, di maio, de mayo
act de » act der, pact de, act does

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

• Adding a wildcard symbol may retrieve word variants: technology change information act de maio communication model clean development _ afrique.*.