Perhaps you should try some spelling variations:
communication model » communication media
csr communication » de communication, 3 communication, 4 communication
development can » development case, development co, development canada
technologies 2 » technologies _, technologies 4
can africa » urban africa
gap 4.1.2 » gap 3.1.2, gap 3.3.2, gap 4.2
4.1.2 csr » 4.1.2 der
model 2 » model 1, model 2.2, model 2.1

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information gap 4.1.2 csr communication model 2 development can africa.*.