Perhaps you should try some spelling variations:
deas communication » lea's communication, nets communication, class communication
technologien aids » technologien als, technologien ad, technologien des
information costs » information contents, information centers, information content
aids information » chandos information, series information
2.3 developing » 3.3 developing, 2.2 developing, 1.3 developing
costs des » costs fees
costs 2.3 » costs 4.2, costs 4.4
des deas » des des, des degats, des delays

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

• Adding a wildcard symbol may retrieve word variants: technologien aids information costs des deas communication costs 2.3 developing _ areas.*.