Perhaps you should try some spelling variations:
further information » customer information
techniques further » techniques rather
communication cost » communication costs, communication costa, communications costs
information und » informations und
2.2 developing » 3.2 developing, 3.3 developing, 2.2 development
developing a » developing _
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
a areas » 1 areas, 2 areas, 4 areas

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

• Adding a wildcard symbol may retrieve word variants: techniques further information und fee mobile communication cost 2.2 developing a areas.*.