Perhaps you should try some spelling variations:
optical communications » optic communication, political communication, digital communications
communications law » communications a, communications _, telecommunications law
die developpement » de developpement, le developpement, du developpement
developpement l » developpement il, developpement la, developpement de
des variation » does variation, de variation, der variation
right optical » light optical, right political, right radical
theorie des » theorie der
variation 6 » variation _, variations _, variation des
l afrique » en afrique
6 right » _ right, a right, 1 right

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

• Adding a wildcard symbol may retrieve word variants: theorie des variation 6 right optical communications law die developpement l afrique.*.