Perhaps you should try some spelling variations:
technologies sector » technology sector, technologies series
communication model » communication media
csr communication » de communication, 3 communication, 4 communication
clean development » human development, urban development
model clean » model coleman, model can, model learn
a afrique » l afrique, en afrique
does csr » does cash

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

• Adding a wildcard symbol may retrieve word variants: technologies sector integration _ does csr communication model clean development a afrique.*.