Perhaps you should try some spelling variations:
optical communications » optic communication, political communication, digital communications
communications model » communications models, communication model, communicating model
technology model » technology models, technology code, technology moral
model integrated » model integrate, model integration, models integrating
de developpement » sme development
integrated plan » integrated land, integration plan, integrated pest
developpement l » developpement il, developpement la, developpement de
a optical » _ optical, 3 optical, 4 optical
l afrique » en afrique
model de » model due, model d, model du
plan a » plan _

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

• Adding a wildcard symbol may retrieve word variants: technology model integrated plan a optical communications model de developpement l afrique.*.