Perhaps you should try some spelling variations:
communication cross » communication costs
layer communication » water communication, jander communication, master communication
information based » information case, information bank, transformation based
technologien als » technologien des, technologien fur, technologien und
als information » als informations, aids information, laws information
4 developing » 3 developing
based he » based hiv, based new, based hsi
he layer » bed layer, _ layer, 1 layer
cross 4 » cross _, cross 1, cross c

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

• Adding a wildcard symbol may retrieve word variants: technologien als information based he layer communication cross 4 developing _ areas.*.