Perhaps you should try some spelling variations:
information environment » inflation environment, international environment, information requirement
communication cost » communication costs, communication costa, communications costs
de communication » mobile communication, online communication
technologies 2 » technologies _, technologies 4
3.2 developing » 3.3 developing, 2.2 developing, 3 developing
environment e » environment _, environment a, environment 1
developing 1 » developing _, developing a, developing e
cost 3.2 » cost 2.4
e de » et de, e die, e der

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

• Adding a wildcard symbol may retrieve word variants: technologies 2 information environment e de communication cost 3.2 developing 1 africa.*.