Perhaps you should try some spelling variations:
parse communication » parte communication, partie communications, passive communication
communication cost » communication costs, communication costa, communications costs
technologien des » technologien fur, technologien und, technologies 2
des information » des informations, does information, dis information
2.4 developing » 12.4 developing, 2.2 developing, 5.4 developing
contents 3.1 » contents 1, contents _, contents map
3.1 parse » 3.2 parse, 4.1 sparse, 3.1 pre

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

• Adding a wildcard symbol may retrieve word variants: technologien des information contents 3.1 parse communication cost 2.4 developing _ africa.*.