Perhaps you should try some spelling variations:
mobile communications » mobile communication
communications costs » communication costs, communications _
debts informations » debt information, des informations, der informations
technology debts » technology debate, technology data, technology dlt
4.1 developing » 3.1 developing, 4 developing, 3.3 developing
werte mobile » where mobile, more mobile, etre mobile
developing 2 » developing _, developing a, developing e
und werte » und werk, und wege
costs 4.1 » costs 4.2, costs 4.4, costs 4.3
2 areas » 1 areas, 2 areal, 4 areas

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

• Adding a wildcard symbol may retrieve word variants: technology debts informations und werte mobile communications costs 4.1 developing 2 areas.*.