Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
u.s communications » 3.1 communications, les communications, nps communications
technologien dis » technologien des, technologien als, technologien im
dis information » mis information, aids information, des informations
developing east » development east, developing a, developing asia
information 2 » information 3
state u.s » state 2.1, state 2.2, state 2.3
asezs. » sezs., aezs.

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

• Adding a wildcard symbol may retrieve word variants: technologien dis information 2 state u.s communications costs _ developing east asezs.*.