Perhaps you should try some spelling variations:
mobile communications » mobile communication
communications cost » communications costs, communications cross, communication costs
information und » informations und
2.2 development » 3.2 development, 2.3 development, 4.2 development
technologies 2 » technologies _, technologies 4
fee mobile » free mobile, die mobile, e mobile
cost 2.2 » costs 2.2, cost 2.4, cost 3.2
und fee » fund fee, end fee, und fed

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information und fee mobile communications cost 2.2 development _ areas.*.