Perhaps you should try some spelling variations:
guyana communications » guiana communications, ghana communications, guinea communications
communications costs » communication costs, communications _
information case » information based, information can, information costs
technologien 2 » technologies 2, technologien _, technologien 1
2.3 developing » 3.3 developing, 2.2 developing, 1.3 developing
developing 2 » developing _, developing a, developing e
des guyana » des guyanes, de guyane
costs 2.3 » costs 4.2, costs 4.4
case des » cases des, case das, phase des
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: technologien 2 information case des guyana communications costs 2.3 developing 2 areas.*.