Perhaps you should try some spelling variations:
optical communication » optical communications, optic communication, political communication
communication model » communication media
law developpement » le developpement, au developpement, leur developpement
die integrating » time integrating, die integration, die integrative
developpement l » developpement il, developpement la, developpement de
technology die » technologie die, technology does, technology 4ir
integrating a » integrating _, integrating human
3.3 optical » 3.3 optimal, 3.3 political, 3.3 critical
l afrique » en afrique
a 3.3 » a 3.2, i 3.3

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

• Adding a wildcard symbol may retrieve word variants: technology die integrating a 3.3 optical communication model law developpement l afrique.*.