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
5.4 developing » 6.4 developing, 3.3 developing, 2.2 developing
contents 3.1 » contents 1, contents _, contents map
3.1 parse » 3.2 parse, 4.1 sparse, 3.1 pre
cost 5.4 » costs 5.4, cost 2.4, cost 3.4

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 5.4 developing _ africa.*.