Perhaps you should try some spelling variations:
optical communications » optic communication, political communication, digital communications
communications model » communications models, communication model, communicating model
sheep development » step development, fishery development, uneven development
technologie die » technologie de, technologie im, technologie der
die integrated » wide integrated, cae integrated, der integrated
development d » development ds, development 1, development did
model sheep » model deep, model ship, model speed
d afrique » l afrique, en afrique, de l'afrique

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

• Adding a wildcard symbol may retrieve word variants: technologie die integrated water _ optical communications model sheep development d afrique.*.