Perhaps you should try some spelling variations:
optic communication » optical communications, public communication, device communication
communication law » communications law, communication layer, communication 3
information rolf » information rules, information risk, information robust
development rate » development create, development route, development water
technologies 2 » technologies _, technologies 4
law tourism » lao tourism, a tourism, new tourism
rate africa » rates africa, rates aafrica, trade africa
3.3 optic » 3.3 optical, 3.3 synoptic
rolf 3.3 » proof 3.3, roles 3.3

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information rolf 3.3 optic communication law tourism development rate africa.*.